<?php
# Generated by the protocol buffer compiler.  DO NOT EDIT!
# source: google/cloud/compute/v1/compute.proto

namespace Google\Cloud\Compute\V1;

use Google\Protobuf\Internal\GPBType;
use Google\Protobuf\Internal\RepeatedField;
use Google\Protobuf\Internal\GPBUtil;

/**
 * Represents a Backend Service resource. A backend service defines how Google Cloud load balancers distribute traffic. The backend service configuration contains a set of values, such as the protocol used to connect to backends, various distribution and session settings, health checks, and timeouts. These settings provide fine-grained control over how your load balancer behaves. Most of the settings have default values that allow for easy configuration if you need to get started quickly. Backend services in Google Compute Engine can be either regionally or globally scoped. * [Global](https://cloud.google.com/compute/docs/reference/rest/v1/backendServices) * [Regional](https://cloud.google.com/compute/docs/reference/rest/v1/regionBackendServices) For more information, see Backend Services.
 *
 * Generated from protobuf message <code>google.cloud.compute.v1.BackendService</code>
 */
class BackendService extends \Google\Protobuf\Internal\Message
{
    /**
     * Lifetime of cookies in seconds. This setting is applicable to external and internal HTTP(S) load balancers and Traffic Director and requires GENERATED_COOKIE or HTTP_COOKIE session affinity. If set to 0, the cookie is non-persistent and lasts only until the end of the browser session (or equivalent). The maximum allowed value is two weeks (1,209,600). Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     *
     * Generated from protobuf field <code>optional int32 affinity_cookie_ttl_sec = 369996954;</code>
     */
    private $affinity_cookie_ttl_sec = null;
    /**
     * The list of backends that serve this BackendService.
     *
     * Generated from protobuf field <code>repeated .google.cloud.compute.v1.Backend backends = 510839903;</code>
     */
    private $backends;
    /**
     * Cloud CDN configuration for this BackendService. Only available for specified load balancer types.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceCdnPolicy cdn_policy = 213976452;</code>
     */
    private $cdn_policy = null;
    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.CircuitBreakers circuit_breakers = 421340061;</code>
     */
    private $circuit_breakers = null;
    /**
     * Compress text responses using Brotli or gzip compression, based on the client's Accept-Encoding header.
     * Check the CompressionMode enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string compression_mode = 95520988;</code>
     */
    private $compression_mode = null;
    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.ConnectionDraining connection_draining = 461096747;</code>
     */
    private $connection_draining = null;
    /**
     * Connection Tracking configuration for this BackendService. Connection tracking policy settings are only available for Network Load Balancing and Internal TCP/UDP Load Balancing.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceConnectionTrackingPolicy connection_tracking_policy = 143994969;</code>
     */
    private $connection_tracking_policy = null;
    /**
     * Consistent Hash-based load balancing can be used to provide soft session affinity based on HTTP headers, cookies or other properties. This load balancing policy is applicable only for HTTP connections. The affinity to a particular destination host will be lost when one or more hosts are added/removed from the destination service. This field specifies parameters that control consistent hashing. This field is only applicable when localityLbPolicy is set to MAGLEV or RING_HASH. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.ConsistentHashLoadBalancerSettings consistent_hash = 905883;</code>
     */
    private $consistent_hash = null;
    /**
     * [Output Only] Creation timestamp in RFC3339 text format.
     *
     * Generated from protobuf field <code>optional string creation_timestamp = 30525366;</code>
     */
    private $creation_timestamp = null;
    /**
     * Headers that the load balancer adds to proxied requests. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *
     * Generated from protobuf field <code>repeated string custom_request_headers = 27977992;</code>
     */
    private $custom_request_headers;
    /**
     * Headers that the load balancer adds to proxied responses. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *
     * Generated from protobuf field <code>repeated string custom_response_headers = 387539094;</code>
     */
    private $custom_response_headers;
    /**
     * An optional description of this resource. Provide this property when you create the resource.
     *
     * Generated from protobuf field <code>optional string description = 422937596;</code>
     */
    private $description = null;
    /**
     * [Output Only] The resource URL for the edge security policy associated with this backend service.
     *
     * Generated from protobuf field <code>optional string edge_security_policy = 41036943;</code>
     */
    private $edge_security_policy = null;
    /**
     * If true, enables Cloud CDN for the backend service of an external HTTP(S) load balancer.
     *
     * Generated from protobuf field <code>optional bool enable_c_d_n = 250733499;</code>
     */
    private $enable_c_d_n = null;
    /**
     * Requires at least one backend instance group to be defined as a backup (failover) backend. For load balancers that have configurable failover: [Internal TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/internal/failover-overview) and [external TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/network/networklb-failover-overview).
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceFailoverPolicy failover_policy = 105658655;</code>
     */
    private $failover_policy = null;
    /**
     * Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field will be ignored when inserting a BackendService. An up-to-date fingerprint must be provided in order to update the BackendService, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a BackendService.
     *
     * Generated from protobuf field <code>optional string fingerprint = 234678500;</code>
     */
    private $fingerprint = null;
    /**
     * The list of URLs to the healthChecks, httpHealthChecks (legacy), or httpsHealthChecks (legacy) resource for health checking this backend service. Not all backend services support legacy health checks. See Load balancer guide. Currently, at most one health check can be specified for each backend service. Backend services with instance group or zonal NEG backends must have a health check. Backend services with internet or serverless NEG backends must not have a health check.
     *
     * Generated from protobuf field <code>repeated string health_checks = 448370606;</code>
     */
    private $health_checks;
    /**
     * The configurations for Identity-Aware Proxy on this resource. Not available for Internal TCP/UDP Load Balancing and Network Load Balancing.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceIAP iap = 104024;</code>
     */
    private $iap = null;
    /**
     * [Output Only] The unique identifier for the resource. This identifier is defined by the server.
     *
     * Generated from protobuf field <code>optional uint64 id = 3355;</code>
     */
    private $id = null;
    /**
     * [Output Only] Type of resource. Always compute#backendService for backend services.
     *
     * Generated from protobuf field <code>optional string kind = 3292052;</code>
     */
    private $kind = null;
    /**
     * Specifies the load balancer type. A backend service created for one type of load balancer cannot be used with another. For more information, refer to Choosing a load balancer.
     * Check the LoadBalancingScheme enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string load_balancing_scheme = 363890244;</code>
     */
    private $load_balancing_scheme = null;
    /**
     * A list of locality load balancing policies to be used in order of preference. Either the policy or the customPolicy field should be set. Overrides any value set in the localityLbPolicy field. localityLbPolicies is only supported when the BackendService is referenced by a URL Map that is referenced by a target gRPC proxy that has the validateForProxyless field set to true.
     *
     * Generated from protobuf field <code>repeated .google.cloud.compute.v1.BackendServiceLocalityLoadBalancingPolicyConfig locality_lb_policies = 140982557;</code>
     */
    private $locality_lb_policies;
    /**
     * The load balancing algorithm used within the scope of the locality. The possible values are: - ROUND_ROBIN: This is a simple policy in which each healthy backend is selected in round robin order. This is the default. - LEAST_REQUEST: An O(1) algorithm which selects two random healthy hosts and picks the host which has fewer active requests. - RING_HASH: The ring/modulo hash load balancer implements consistent hashing to backends. The algorithm has the property that the addition/removal of a host from a set of N hosts only affects 1/N of the requests. - RANDOM: The load balancer selects a random healthy host. - ORIGINAL_DESTINATION: Backend host is selected based on the client connection metadata, i.e., connections are opened to the same address as the destination address of the incoming connection before the connection was redirected to the load balancer. - MAGLEV: used as a drop in replacement for the ring hash load balancer. Maglev is not as stable as ring hash but has faster table lookup build times and host selection times. For more information about Maglev, see https://ai.google/research/pubs/pub44824 This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. If sessionAffinity is not NONE, and this field is not set to MAGLEV or RING_HASH, session affinity settings will not take effect. Only ROUND_ROBIN and RING_HASH are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     * Check the LocalityLbPolicy enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string locality_lb_policy = 131431487;</code>
     */
    private $locality_lb_policy = null;
    /**
     * This field denotes the logging options for the load balancer traffic served by this backend service. If logging is enabled, logs will be exported to Stackdriver.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceLogConfig log_config = 351299741;</code>
     */
    private $log_config = null;
    /**
     * Specifies the default maximum duration (timeout) for streams to this service. Duration is computed from the beginning of the stream until the response has been completely processed, including all retries. A stream that does not complete in this duration is closed. If not specified, there will be no timeout limit, i.e. the maximum duration is infinite. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. This field is only allowed when the loadBalancingScheme of the backend service is INTERNAL_SELF_MANAGED.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.Duration max_stream_duration = 61428376;</code>
     */
    private $max_stream_duration = null;
    /**
     * Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
     *
     * Generated from protobuf field <code>optional string name = 3373707;</code>
     */
    private $name = null;
    /**
     * The URL of the network to which this backend service belongs. This field can only be specified when the load balancing scheme is set to INTERNAL.
     *
     * Generated from protobuf field <code>optional string network = 232872494;</code>
     */
    private $network = null;
    /**
     * Settings controlling the eviction of unhealthy hosts from the load balancing pool for the backend service. If not set, this feature is considered disabled. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, HTTP2, or GRPC, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.OutlierDetection outlier_detection = 354625086;</code>
     */
    private $outlier_detection = null;
    /**
     * Deprecated in favor of portName. The TCP port to connect on the backend. The default value is 80. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port.
     *
     * Generated from protobuf field <code>optional int32 port = 3446913;</code>
     */
    private $port = null;
    /**
     * A named port on a backend instance group representing the port for communication to the backend VMs in that group. The named port must be [defined on each backend instance group](https://cloud.google.com/load-balancing/docs/backend-service#named_ports). This parameter has no meaning if the backends are NEGs. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port_name.
     *
     * Generated from protobuf field <code>optional string port_name = 41534345;</code>
     */
    private $port_name = null;
    /**
     * The protocol this BackendService uses to communicate with backends. Possible values are HTTP, HTTPS, HTTP2, TCP, SSL, UDP or GRPC. depending on the chosen load balancer or Traffic Director configuration. Refer to the documentation for the load balancers or for Traffic Director for more information. Must be set to GRPC when the backend service is referenced by a URL map that is bound to target gRPC proxy.
     * Check the Protocol enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string protocol = 84577944;</code>
     */
    private $protocol = null;
    /**
     * [Output Only] URL of the region where the regional backend service resides. This field is not applicable to global backend services. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
     *
     * Generated from protobuf field <code>optional string region = 138946292;</code>
     */
    private $region = null;
    /**
     * [Output Only] The resource URL for the security policy associated with this backend service.
     *
     * Generated from protobuf field <code>optional string security_policy = 171082513;</code>
     */
    private $security_policy = null;
    /**
     * This field specifies the security settings that apply to this backend service. This field is applicable to a global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.SecuritySettings security_settings = 478649922;</code>
     */
    private $security_settings = null;
    /**
     * [Output Only] Server-defined URL for the resource.
     *
     * Generated from protobuf field <code>optional string self_link = 456214797;</code>
     */
    private $self_link = null;
    /**
     * URLs of networkservices.ServiceBinding resources. Can only be set if load balancing scheme is INTERNAL_SELF_MANAGED. If set, lists of backends and health checks must be both empty.
     *
     * Generated from protobuf field <code>repeated string service_bindings = 133581016;</code>
     */
    private $service_bindings;
    /**
     * Type of session affinity to use. The default is NONE. Only NONE and HEADER_FIELD are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. For more details, see: [Session Affinity](https://cloud.google.com/load-balancing/docs/backend-service#session_affinity).
     * Check the SessionAffinity enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string session_affinity = 463888561;</code>
     */
    private $session_affinity = null;
    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.Subsetting subsetting = 450283536;</code>
     */
    private $subsetting = null;
    /**
     * The backend service timeout has a different meaning depending on the type of load balancer. For more information see, Backend service settings. The default is 30 seconds. The full range of timeout values allowed goes from 1 through 2,147,483,647 seconds. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. Instead, use maxStreamDuration.
     *
     * Generated from protobuf field <code>optional int32 timeout_sec = 79994995;</code>
     */
    private $timeout_sec = null;

    /**
     * Constructor.
     *
     * @param array $data {
     *     Optional. Data for populating the Message object.
     *
     *     @type int $affinity_cookie_ttl_sec
     *           Lifetime of cookies in seconds. This setting is applicable to external and internal HTTP(S) load balancers and Traffic Director and requires GENERATED_COOKIE or HTTP_COOKIE session affinity. If set to 0, the cookie is non-persistent and lasts only until the end of the browser session (or equivalent). The maximum allowed value is two weeks (1,209,600). Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     *     @type array<\Google\Cloud\Compute\V1\Backend>|\Google\Protobuf\Internal\RepeatedField $backends
     *           The list of backends that serve this BackendService.
     *     @type \Google\Cloud\Compute\V1\BackendServiceCdnPolicy $cdn_policy
     *           Cloud CDN configuration for this BackendService. Only available for specified load balancer types.
     *     @type \Google\Cloud\Compute\V1\CircuitBreakers $circuit_breakers
     *     @type string $compression_mode
     *           Compress text responses using Brotli or gzip compression, based on the client's Accept-Encoding header.
     *           Check the CompressionMode enum for the list of possible values.
     *     @type \Google\Cloud\Compute\V1\ConnectionDraining $connection_draining
     *     @type \Google\Cloud\Compute\V1\BackendServiceConnectionTrackingPolicy $connection_tracking_policy
     *           Connection Tracking configuration for this BackendService. Connection tracking policy settings are only available for Network Load Balancing and Internal TCP/UDP Load Balancing.
     *     @type \Google\Cloud\Compute\V1\ConsistentHashLoadBalancerSettings $consistent_hash
     *           Consistent Hash-based load balancing can be used to provide soft session affinity based on HTTP headers, cookies or other properties. This load balancing policy is applicable only for HTTP connections. The affinity to a particular destination host will be lost when one or more hosts are added/removed from the destination service. This field specifies parameters that control consistent hashing. This field is only applicable when localityLbPolicy is set to MAGLEV or RING_HASH. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *     @type string $creation_timestamp
     *           [Output Only] Creation timestamp in RFC3339 text format.
     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $custom_request_headers
     *           Headers that the load balancer adds to proxied requests. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $custom_response_headers
     *           Headers that the load balancer adds to proxied responses. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *     @type string $description
     *           An optional description of this resource. Provide this property when you create the resource.
     *     @type string $edge_security_policy
     *           [Output Only] The resource URL for the edge security policy associated with this backend service.
     *     @type bool $enable_c_d_n
     *           If true, enables Cloud CDN for the backend service of an external HTTP(S) load balancer.
     *     @type \Google\Cloud\Compute\V1\BackendServiceFailoverPolicy $failover_policy
     *           Requires at least one backend instance group to be defined as a backup (failover) backend. For load balancers that have configurable failover: [Internal TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/internal/failover-overview) and [external TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/network/networklb-failover-overview).
     *     @type string $fingerprint
     *           Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field will be ignored when inserting a BackendService. An up-to-date fingerprint must be provided in order to update the BackendService, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a BackendService.
     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $health_checks
     *           The list of URLs to the healthChecks, httpHealthChecks (legacy), or httpsHealthChecks (legacy) resource for health checking this backend service. Not all backend services support legacy health checks. See Load balancer guide. Currently, at most one health check can be specified for each backend service. Backend services with instance group or zonal NEG backends must have a health check. Backend services with internet or serverless NEG backends must not have a health check.
     *     @type \Google\Cloud\Compute\V1\BackendServiceIAP $iap
     *           The configurations for Identity-Aware Proxy on this resource. Not available for Internal TCP/UDP Load Balancing and Network Load Balancing.
     *     @type int|string $id
     *           [Output Only] The unique identifier for the resource. This identifier is defined by the server.
     *     @type string $kind
     *           [Output Only] Type of resource. Always compute#backendService for backend services.
     *     @type string $load_balancing_scheme
     *           Specifies the load balancer type. A backend service created for one type of load balancer cannot be used with another. For more information, refer to Choosing a load balancer.
     *           Check the LoadBalancingScheme enum for the list of possible values.
     *     @type array<\Google\Cloud\Compute\V1\BackendServiceLocalityLoadBalancingPolicyConfig>|\Google\Protobuf\Internal\RepeatedField $locality_lb_policies
     *           A list of locality load balancing policies to be used in order of preference. Either the policy or the customPolicy field should be set. Overrides any value set in the localityLbPolicy field. localityLbPolicies is only supported when the BackendService is referenced by a URL Map that is referenced by a target gRPC proxy that has the validateForProxyless field set to true.
     *     @type string $locality_lb_policy
     *           The load balancing algorithm used within the scope of the locality. The possible values are: - ROUND_ROBIN: This is a simple policy in which each healthy backend is selected in round robin order. This is the default. - LEAST_REQUEST: An O(1) algorithm which selects two random healthy hosts and picks the host which has fewer active requests. - RING_HASH: The ring/modulo hash load balancer implements consistent hashing to backends. The algorithm has the property that the addition/removal of a host from a set of N hosts only affects 1/N of the requests. - RANDOM: The load balancer selects a random healthy host. - ORIGINAL_DESTINATION: Backend host is selected based on the client connection metadata, i.e., connections are opened to the same address as the destination address of the incoming connection before the connection was redirected to the load balancer. - MAGLEV: used as a drop in replacement for the ring hash load balancer. Maglev is not as stable as ring hash but has faster table lookup build times and host selection times. For more information about Maglev, see https://ai.google/research/pubs/pub44824 This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. If sessionAffinity is not NONE, and this field is not set to MAGLEV or RING_HASH, session affinity settings will not take effect. Only ROUND_ROBIN and RING_HASH are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     *           Check the LocalityLbPolicy enum for the list of possible values.
     *     @type \Google\Cloud\Compute\V1\BackendServiceLogConfig $log_config
     *           This field denotes the logging options for the load balancer traffic served by this backend service. If logging is enabled, logs will be exported to Stackdriver.
     *     @type \Google\Cloud\Compute\V1\Duration $max_stream_duration
     *           Specifies the default maximum duration (timeout) for streams to this service. Duration is computed from the beginning of the stream until the response has been completely processed, including all retries. A stream that does not complete in this duration is closed. If not specified, there will be no timeout limit, i.e. the maximum duration is infinite. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. This field is only allowed when the loadBalancingScheme of the backend service is INTERNAL_SELF_MANAGED.
     *     @type string $name
     *           Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
     *     @type string $network
     *           The URL of the network to which this backend service belongs. This field can only be specified when the load balancing scheme is set to INTERNAL.
     *     @type \Google\Cloud\Compute\V1\OutlierDetection $outlier_detection
     *           Settings controlling the eviction of unhealthy hosts from the load balancing pool for the backend service. If not set, this feature is considered disabled. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, HTTP2, or GRPC, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *     @type int $port
     *           Deprecated in favor of portName. The TCP port to connect on the backend. The default value is 80. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port.
     *     @type string $port_name
     *           A named port on a backend instance group representing the port for communication to the backend VMs in that group. The named port must be [defined on each backend instance group](https://cloud.google.com/load-balancing/docs/backend-service#named_ports). This parameter has no meaning if the backends are NEGs. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port_name.
     *     @type string $protocol
     *           The protocol this BackendService uses to communicate with backends. Possible values are HTTP, HTTPS, HTTP2, TCP, SSL, UDP or GRPC. depending on the chosen load balancer or Traffic Director configuration. Refer to the documentation for the load balancers or for Traffic Director for more information. Must be set to GRPC when the backend service is referenced by a URL map that is bound to target gRPC proxy.
     *           Check the Protocol enum for the list of possible values.
     *     @type string $region
     *           [Output Only] URL of the region where the regional backend service resides. This field is not applicable to global backend services. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
     *     @type string $security_policy
     *           [Output Only] The resource URL for the security policy associated with this backend service.
     *     @type \Google\Cloud\Compute\V1\SecuritySettings $security_settings
     *           This field specifies the security settings that apply to this backend service. This field is applicable to a global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED.
     *     @type string $self_link
     *           [Output Only] Server-defined URL for the resource.
     *     @type array<string>|\Google\Protobuf\Internal\RepeatedField $service_bindings
     *           URLs of networkservices.ServiceBinding resources. Can only be set if load balancing scheme is INTERNAL_SELF_MANAGED. If set, lists of backends and health checks must be both empty.
     *     @type string $session_affinity
     *           Type of session affinity to use. The default is NONE. Only NONE and HEADER_FIELD are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. For more details, see: [Session Affinity](https://cloud.google.com/load-balancing/docs/backend-service#session_affinity).
     *           Check the SessionAffinity enum for the list of possible values.
     *     @type \Google\Cloud\Compute\V1\Subsetting $subsetting
     *     @type int $timeout_sec
     *           The backend service timeout has a different meaning depending on the type of load balancer. For more information see, Backend service settings. The default is 30 seconds. The full range of timeout values allowed goes from 1 through 2,147,483,647 seconds. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. Instead, use maxStreamDuration.
     * }
     */
    public function __construct($data = NULL) {
        \GPBMetadata\Google\Cloud\Compute\V1\Compute::initOnce();
        parent::__construct($data);
    }

    /**
     * Lifetime of cookies in seconds. This setting is applicable to external and internal HTTP(S) load balancers and Traffic Director and requires GENERATED_COOKIE or HTTP_COOKIE session affinity. If set to 0, the cookie is non-persistent and lasts only until the end of the browser session (or equivalent). The maximum allowed value is two weeks (1,209,600). Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     *
     * Generated from protobuf field <code>optional int32 affinity_cookie_ttl_sec = 369996954;</code>
     * @return int
     */
    public function getAffinityCookieTtlSec()
    {
        return isset($this->affinity_cookie_ttl_sec) ? $this->affinity_cookie_ttl_sec : 0;
    }

    public function hasAffinityCookieTtlSec()
    {
        return isset($this->affinity_cookie_ttl_sec);
    }

    public function clearAffinityCookieTtlSec()
    {
        unset($this->affinity_cookie_ttl_sec);
    }

    /**
     * Lifetime of cookies in seconds. This setting is applicable to external and internal HTTP(S) load balancers and Traffic Director and requires GENERATED_COOKIE or HTTP_COOKIE session affinity. If set to 0, the cookie is non-persistent and lasts only until the end of the browser session (or equivalent). The maximum allowed value is two weeks (1,209,600). Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     *
     * Generated from protobuf field <code>optional int32 affinity_cookie_ttl_sec = 369996954;</code>
     * @param int $var
     * @return $this
     */
    public function setAffinityCookieTtlSec($var)
    {
        GPBUtil::checkInt32($var);
        $this->affinity_cookie_ttl_sec = $var;

        return $this;
    }

    /**
     * The list of backends that serve this BackendService.
     *
     * Generated from protobuf field <code>repeated .google.cloud.compute.v1.Backend backends = 510839903;</code>
     * @return \Google\Protobuf\Internal\RepeatedField
     */
    public function getBackends()
    {
        return $this->backends;
    }

    /**
     * The list of backends that serve this BackendService.
     *
     * Generated from protobuf field <code>repeated .google.cloud.compute.v1.Backend backends = 510839903;</code>
     * @param array<\Google\Cloud\Compute\V1\Backend>|\Google\Protobuf\Internal\RepeatedField $var
     * @return $this
     */
    public function setBackends($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Compute\V1\Backend::class);
        $this->backends = $arr;

        return $this;
    }

    /**
     * Cloud CDN configuration for this BackendService. Only available for specified load balancer types.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceCdnPolicy cdn_policy = 213976452;</code>
     * @return \Google\Cloud\Compute\V1\BackendServiceCdnPolicy|null
     */
    public function getCdnPolicy()
    {
        return $this->cdn_policy;
    }

    public function hasCdnPolicy()
    {
        return isset($this->cdn_policy);
    }

    public function clearCdnPolicy()
    {
        unset($this->cdn_policy);
    }

    /**
     * Cloud CDN configuration for this BackendService. Only available for specified load balancer types.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceCdnPolicy cdn_policy = 213976452;</code>
     * @param \Google\Cloud\Compute\V1\BackendServiceCdnPolicy $var
     * @return $this
     */
    public function setCdnPolicy($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\BackendServiceCdnPolicy::class);
        $this->cdn_policy = $var;

        return $this;
    }

    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.CircuitBreakers circuit_breakers = 421340061;</code>
     * @return \Google\Cloud\Compute\V1\CircuitBreakers|null
     */
    public function getCircuitBreakers()
    {
        return $this->circuit_breakers;
    }

    public function hasCircuitBreakers()
    {
        return isset($this->circuit_breakers);
    }

    public function clearCircuitBreakers()
    {
        unset($this->circuit_breakers);
    }

    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.CircuitBreakers circuit_breakers = 421340061;</code>
     * @param \Google\Cloud\Compute\V1\CircuitBreakers $var
     * @return $this
     */
    public function setCircuitBreakers($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\CircuitBreakers::class);
        $this->circuit_breakers = $var;

        return $this;
    }

    /**
     * Compress text responses using Brotli or gzip compression, based on the client's Accept-Encoding header.
     * Check the CompressionMode enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string compression_mode = 95520988;</code>
     * @return string
     */
    public function getCompressionMode()
    {
        return isset($this->compression_mode) ? $this->compression_mode : '';
    }

    public function hasCompressionMode()
    {
        return isset($this->compression_mode);
    }

    public function clearCompressionMode()
    {
        unset($this->compression_mode);
    }

    /**
     * Compress text responses using Brotli or gzip compression, based on the client's Accept-Encoding header.
     * Check the CompressionMode enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string compression_mode = 95520988;</code>
     * @param string $var
     * @return $this
     */
    public function setCompressionMode($var)
    {
        GPBUtil::checkString($var, True);
        $this->compression_mode = $var;

        return $this;
    }

    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.ConnectionDraining connection_draining = 461096747;</code>
     * @return \Google\Cloud\Compute\V1\ConnectionDraining|null
     */
    public function getConnectionDraining()
    {
        return $this->connection_draining;
    }

    public function hasConnectionDraining()
    {
        return isset($this->connection_draining);
    }

    public function clearConnectionDraining()
    {
        unset($this->connection_draining);
    }

    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.ConnectionDraining connection_draining = 461096747;</code>
     * @param \Google\Cloud\Compute\V1\ConnectionDraining $var
     * @return $this
     */
    public function setConnectionDraining($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\ConnectionDraining::class);
        $this->connection_draining = $var;

        return $this;
    }

    /**
     * Connection Tracking configuration for this BackendService. Connection tracking policy settings are only available for Network Load Balancing and Internal TCP/UDP Load Balancing.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceConnectionTrackingPolicy connection_tracking_policy = 143994969;</code>
     * @return \Google\Cloud\Compute\V1\BackendServiceConnectionTrackingPolicy|null
     */
    public function getConnectionTrackingPolicy()
    {
        return $this->connection_tracking_policy;
    }

    public function hasConnectionTrackingPolicy()
    {
        return isset($this->connection_tracking_policy);
    }

    public function clearConnectionTrackingPolicy()
    {
        unset($this->connection_tracking_policy);
    }

    /**
     * Connection Tracking configuration for this BackendService. Connection tracking policy settings are only available for Network Load Balancing and Internal TCP/UDP Load Balancing.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceConnectionTrackingPolicy connection_tracking_policy = 143994969;</code>
     * @param \Google\Cloud\Compute\V1\BackendServiceConnectionTrackingPolicy $var
     * @return $this
     */
    public function setConnectionTrackingPolicy($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\BackendServiceConnectionTrackingPolicy::class);
        $this->connection_tracking_policy = $var;

        return $this;
    }

    /**
     * Consistent Hash-based load balancing can be used to provide soft session affinity based on HTTP headers, cookies or other properties. This load balancing policy is applicable only for HTTP connections. The affinity to a particular destination host will be lost when one or more hosts are added/removed from the destination service. This field specifies parameters that control consistent hashing. This field is only applicable when localityLbPolicy is set to MAGLEV or RING_HASH. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.ConsistentHashLoadBalancerSettings consistent_hash = 905883;</code>
     * @return \Google\Cloud\Compute\V1\ConsistentHashLoadBalancerSettings|null
     */
    public function getConsistentHash()
    {
        return $this->consistent_hash;
    }

    public function hasConsistentHash()
    {
        return isset($this->consistent_hash);
    }

    public function clearConsistentHash()
    {
        unset($this->consistent_hash);
    }

    /**
     * Consistent Hash-based load balancing can be used to provide soft session affinity based on HTTP headers, cookies or other properties. This load balancing policy is applicable only for HTTP connections. The affinity to a particular destination host will be lost when one or more hosts are added/removed from the destination service. This field specifies parameters that control consistent hashing. This field is only applicable when localityLbPolicy is set to MAGLEV or RING_HASH. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.ConsistentHashLoadBalancerSettings consistent_hash = 905883;</code>
     * @param \Google\Cloud\Compute\V1\ConsistentHashLoadBalancerSettings $var
     * @return $this
     */
    public function setConsistentHash($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\ConsistentHashLoadBalancerSettings::class);
        $this->consistent_hash = $var;

        return $this;
    }

    /**
     * [Output Only] Creation timestamp in RFC3339 text format.
     *
     * Generated from protobuf field <code>optional string creation_timestamp = 30525366;</code>
     * @return string
     */
    public function getCreationTimestamp()
    {
        return isset($this->creation_timestamp) ? $this->creation_timestamp : '';
    }

    public function hasCreationTimestamp()
    {
        return isset($this->creation_timestamp);
    }

    public function clearCreationTimestamp()
    {
        unset($this->creation_timestamp);
    }

    /**
     * [Output Only] Creation timestamp in RFC3339 text format.
     *
     * Generated from protobuf field <code>optional string creation_timestamp = 30525366;</code>
     * @param string $var
     * @return $this
     */
    public function setCreationTimestamp($var)
    {
        GPBUtil::checkString($var, True);
        $this->creation_timestamp = $var;

        return $this;
    }

    /**
     * Headers that the load balancer adds to proxied requests. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *
     * Generated from protobuf field <code>repeated string custom_request_headers = 27977992;</code>
     * @return \Google\Protobuf\Internal\RepeatedField
     */
    public function getCustomRequestHeaders()
    {
        return $this->custom_request_headers;
    }

    /**
     * Headers that the load balancer adds to proxied requests. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *
     * Generated from protobuf field <code>repeated string custom_request_headers = 27977992;</code>
     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
     * @return $this
     */
    public function setCustomRequestHeaders($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
        $this->custom_request_headers = $arr;

        return $this;
    }

    /**
     * Headers that the load balancer adds to proxied responses. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *
     * Generated from protobuf field <code>repeated string custom_response_headers = 387539094;</code>
     * @return \Google\Protobuf\Internal\RepeatedField
     */
    public function getCustomResponseHeaders()
    {
        return $this->custom_response_headers;
    }

    /**
     * Headers that the load balancer adds to proxied responses. See [Creating custom headers](https://cloud.google.com/load-balancing/docs/custom-headers).
     *
     * Generated from protobuf field <code>repeated string custom_response_headers = 387539094;</code>
     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
     * @return $this
     */
    public function setCustomResponseHeaders($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
        $this->custom_response_headers = $arr;

        return $this;
    }

    /**
     * An optional description of this resource. Provide this property when you create the resource.
     *
     * Generated from protobuf field <code>optional string description = 422937596;</code>
     * @return string
     */
    public function getDescription()
    {
        return isset($this->description) ? $this->description : '';
    }

    public function hasDescription()
    {
        return isset($this->description);
    }

    public function clearDescription()
    {
        unset($this->description);
    }

    /**
     * An optional description of this resource. Provide this property when you create the resource.
     *
     * Generated from protobuf field <code>optional string description = 422937596;</code>
     * @param string $var
     * @return $this
     */
    public function setDescription($var)
    {
        GPBUtil::checkString($var, True);
        $this->description = $var;

        return $this;
    }

    /**
     * [Output Only] The resource URL for the edge security policy associated with this backend service.
     *
     * Generated from protobuf field <code>optional string edge_security_policy = 41036943;</code>
     * @return string
     */
    public function getEdgeSecurityPolicy()
    {
        return isset($this->edge_security_policy) ? $this->edge_security_policy : '';
    }

    public function hasEdgeSecurityPolicy()
    {
        return isset($this->edge_security_policy);
    }

    public function clearEdgeSecurityPolicy()
    {
        unset($this->edge_security_policy);
    }

    /**
     * [Output Only] The resource URL for the edge security policy associated with this backend service.
     *
     * Generated from protobuf field <code>optional string edge_security_policy = 41036943;</code>
     * @param string $var
     * @return $this
     */
    public function setEdgeSecurityPolicy($var)
    {
        GPBUtil::checkString($var, True);
        $this->edge_security_policy = $var;

        return $this;
    }

    /**
     * If true, enables Cloud CDN for the backend service of an external HTTP(S) load balancer.
     *
     * Generated from protobuf field <code>optional bool enable_c_d_n = 250733499;</code>
     * @return bool
     */
    public function getEnableCDN()
    {
        return isset($this->enable_c_d_n) ? $this->enable_c_d_n : false;
    }

    public function hasEnableCDN()
    {
        return isset($this->enable_c_d_n);
    }

    public function clearEnableCDN()
    {
        unset($this->enable_c_d_n);
    }

    /**
     * If true, enables Cloud CDN for the backend service of an external HTTP(S) load balancer.
     *
     * Generated from protobuf field <code>optional bool enable_c_d_n = 250733499;</code>
     * @param bool $var
     * @return $this
     */
    public function setEnableCDN($var)
    {
        GPBUtil::checkBool($var);
        $this->enable_c_d_n = $var;

        return $this;
    }

    /**
     * Requires at least one backend instance group to be defined as a backup (failover) backend. For load balancers that have configurable failover: [Internal TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/internal/failover-overview) and [external TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/network/networklb-failover-overview).
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceFailoverPolicy failover_policy = 105658655;</code>
     * @return \Google\Cloud\Compute\V1\BackendServiceFailoverPolicy|null
     */
    public function getFailoverPolicy()
    {
        return $this->failover_policy;
    }

    public function hasFailoverPolicy()
    {
        return isset($this->failover_policy);
    }

    public function clearFailoverPolicy()
    {
        unset($this->failover_policy);
    }

    /**
     * Requires at least one backend instance group to be defined as a backup (failover) backend. For load balancers that have configurable failover: [Internal TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/internal/failover-overview) and [external TCP/UDP Load Balancing](https://cloud.google.com/load-balancing/docs/network/networklb-failover-overview).
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceFailoverPolicy failover_policy = 105658655;</code>
     * @param \Google\Cloud\Compute\V1\BackendServiceFailoverPolicy $var
     * @return $this
     */
    public function setFailoverPolicy($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\BackendServiceFailoverPolicy::class);
        $this->failover_policy = $var;

        return $this;
    }

    /**
     * Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field will be ignored when inserting a BackendService. An up-to-date fingerprint must be provided in order to update the BackendService, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a BackendService.
     *
     * Generated from protobuf field <code>optional string fingerprint = 234678500;</code>
     * @return string
     */
    public function getFingerprint()
    {
        return isset($this->fingerprint) ? $this->fingerprint : '';
    }

    public function hasFingerprint()
    {
        return isset($this->fingerprint);
    }

    public function clearFingerprint()
    {
        unset($this->fingerprint);
    }

    /**
     * Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field will be ignored when inserting a BackendService. An up-to-date fingerprint must be provided in order to update the BackendService, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a BackendService.
     *
     * Generated from protobuf field <code>optional string fingerprint = 234678500;</code>
     * @param string $var
     * @return $this
     */
    public function setFingerprint($var)
    {
        GPBUtil::checkString($var, True);
        $this->fingerprint = $var;

        return $this;
    }

    /**
     * The list of URLs to the healthChecks, httpHealthChecks (legacy), or httpsHealthChecks (legacy) resource for health checking this backend service. Not all backend services support legacy health checks. See Load balancer guide. Currently, at most one health check can be specified for each backend service. Backend services with instance group or zonal NEG backends must have a health check. Backend services with internet or serverless NEG backends must not have a health check.
     *
     * Generated from protobuf field <code>repeated string health_checks = 448370606;</code>
     * @return \Google\Protobuf\Internal\RepeatedField
     */
    public function getHealthChecks()
    {
        return $this->health_checks;
    }

    /**
     * The list of URLs to the healthChecks, httpHealthChecks (legacy), or httpsHealthChecks (legacy) resource for health checking this backend service. Not all backend services support legacy health checks. See Load balancer guide. Currently, at most one health check can be specified for each backend service. Backend services with instance group or zonal NEG backends must have a health check. Backend services with internet or serverless NEG backends must not have a health check.
     *
     * Generated from protobuf field <code>repeated string health_checks = 448370606;</code>
     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
     * @return $this
     */
    public function setHealthChecks($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
        $this->health_checks = $arr;

        return $this;
    }

    /**
     * The configurations for Identity-Aware Proxy on this resource. Not available for Internal TCP/UDP Load Balancing and Network Load Balancing.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceIAP iap = 104024;</code>
     * @return \Google\Cloud\Compute\V1\BackendServiceIAP|null
     */
    public function getIap()
    {
        return $this->iap;
    }

    public function hasIap()
    {
        return isset($this->iap);
    }

    public function clearIap()
    {
        unset($this->iap);
    }

    /**
     * The configurations for Identity-Aware Proxy on this resource. Not available for Internal TCP/UDP Load Balancing and Network Load Balancing.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceIAP iap = 104024;</code>
     * @param \Google\Cloud\Compute\V1\BackendServiceIAP $var
     * @return $this
     */
    public function setIap($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\BackendServiceIAP::class);
        $this->iap = $var;

        return $this;
    }

    /**
     * [Output Only] The unique identifier for the resource. This identifier is defined by the server.
     *
     * Generated from protobuf field <code>optional uint64 id = 3355;</code>
     * @return int|string
     */
    public function getId()
    {
        return isset($this->id) ? $this->id : 0;
    }

    public function hasId()
    {
        return isset($this->id);
    }

    public function clearId()
    {
        unset($this->id);
    }

    /**
     * [Output Only] The unique identifier for the resource. This identifier is defined by the server.
     *
     * Generated from protobuf field <code>optional uint64 id = 3355;</code>
     * @param int|string $var
     * @return $this
     */
    public function setId($var)
    {
        GPBUtil::checkUint64($var);
        $this->id = $var;

        return $this;
    }

    /**
     * [Output Only] Type of resource. Always compute#backendService for backend services.
     *
     * Generated from protobuf field <code>optional string kind = 3292052;</code>
     * @return string
     */
    public function getKind()
    {
        return isset($this->kind) ? $this->kind : '';
    }

    public function hasKind()
    {
        return isset($this->kind);
    }

    public function clearKind()
    {
        unset($this->kind);
    }

    /**
     * [Output Only] Type of resource. Always compute#backendService for backend services.
     *
     * Generated from protobuf field <code>optional string kind = 3292052;</code>
     * @param string $var
     * @return $this
     */
    public function setKind($var)
    {
        GPBUtil::checkString($var, True);
        $this->kind = $var;

        return $this;
    }

    /**
     * Specifies the load balancer type. A backend service created for one type of load balancer cannot be used with another. For more information, refer to Choosing a load balancer.
     * Check the LoadBalancingScheme enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string load_balancing_scheme = 363890244;</code>
     * @return string
     */
    public function getLoadBalancingScheme()
    {
        return isset($this->load_balancing_scheme) ? $this->load_balancing_scheme : '';
    }

    public function hasLoadBalancingScheme()
    {
        return isset($this->load_balancing_scheme);
    }

    public function clearLoadBalancingScheme()
    {
        unset($this->load_balancing_scheme);
    }

    /**
     * Specifies the load balancer type. A backend service created for one type of load balancer cannot be used with another. For more information, refer to Choosing a load balancer.
     * Check the LoadBalancingScheme enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string load_balancing_scheme = 363890244;</code>
     * @param string $var
     * @return $this
     */
    public function setLoadBalancingScheme($var)
    {
        GPBUtil::checkString($var, True);
        $this->load_balancing_scheme = $var;

        return $this;
    }

    /**
     * A list of locality load balancing policies to be used in order of preference. Either the policy or the customPolicy field should be set. Overrides any value set in the localityLbPolicy field. localityLbPolicies is only supported when the BackendService is referenced by a URL Map that is referenced by a target gRPC proxy that has the validateForProxyless field set to true.
     *
     * Generated from protobuf field <code>repeated .google.cloud.compute.v1.BackendServiceLocalityLoadBalancingPolicyConfig locality_lb_policies = 140982557;</code>
     * @return \Google\Protobuf\Internal\RepeatedField
     */
    public function getLocalityLbPolicies()
    {
        return $this->locality_lb_policies;
    }

    /**
     * A list of locality load balancing policies to be used in order of preference. Either the policy or the customPolicy field should be set. Overrides any value set in the localityLbPolicy field. localityLbPolicies is only supported when the BackendService is referenced by a URL Map that is referenced by a target gRPC proxy that has the validateForProxyless field set to true.
     *
     * Generated from protobuf field <code>repeated .google.cloud.compute.v1.BackendServiceLocalityLoadBalancingPolicyConfig locality_lb_policies = 140982557;</code>
     * @param array<\Google\Cloud\Compute\V1\BackendServiceLocalityLoadBalancingPolicyConfig>|\Google\Protobuf\Internal\RepeatedField $var
     * @return $this
     */
    public function setLocalityLbPolicies($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Google\Cloud\Compute\V1\BackendServiceLocalityLoadBalancingPolicyConfig::class);
        $this->locality_lb_policies = $arr;

        return $this;
    }

    /**
     * The load balancing algorithm used within the scope of the locality. The possible values are: - ROUND_ROBIN: This is a simple policy in which each healthy backend is selected in round robin order. This is the default. - LEAST_REQUEST: An O(1) algorithm which selects two random healthy hosts and picks the host which has fewer active requests. - RING_HASH: The ring/modulo hash load balancer implements consistent hashing to backends. The algorithm has the property that the addition/removal of a host from a set of N hosts only affects 1/N of the requests. - RANDOM: The load balancer selects a random healthy host. - ORIGINAL_DESTINATION: Backend host is selected based on the client connection metadata, i.e., connections are opened to the same address as the destination address of the incoming connection before the connection was redirected to the load balancer. - MAGLEV: used as a drop in replacement for the ring hash load balancer. Maglev is not as stable as ring hash but has faster table lookup build times and host selection times. For more information about Maglev, see https://ai.google/research/pubs/pub44824 This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. If sessionAffinity is not NONE, and this field is not set to MAGLEV or RING_HASH, session affinity settings will not take effect. Only ROUND_ROBIN and RING_HASH are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     * Check the LocalityLbPolicy enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string locality_lb_policy = 131431487;</code>
     * @return string
     */
    public function getLocalityLbPolicy()
    {
        return isset($this->locality_lb_policy) ? $this->locality_lb_policy : '';
    }

    public function hasLocalityLbPolicy()
    {
        return isset($this->locality_lb_policy);
    }

    public function clearLocalityLbPolicy()
    {
        unset($this->locality_lb_policy);
    }

    /**
     * The load balancing algorithm used within the scope of the locality. The possible values are: - ROUND_ROBIN: This is a simple policy in which each healthy backend is selected in round robin order. This is the default. - LEAST_REQUEST: An O(1) algorithm which selects two random healthy hosts and picks the host which has fewer active requests. - RING_HASH: The ring/modulo hash load balancer implements consistent hashing to backends. The algorithm has the property that the addition/removal of a host from a set of N hosts only affects 1/N of the requests. - RANDOM: The load balancer selects a random healthy host. - ORIGINAL_DESTINATION: Backend host is selected based on the client connection metadata, i.e., connections are opened to the same address as the destination address of the incoming connection before the connection was redirected to the load balancer. - MAGLEV: used as a drop in replacement for the ring hash load balancer. Maglev is not as stable as ring hash but has faster table lookup build times and host selection times. For more information about Maglev, see https://ai.google/research/pubs/pub44824 This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, or HTTP2, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. If sessionAffinity is not NONE, and this field is not set to MAGLEV or RING_HASH, session affinity settings will not take effect. Only ROUND_ROBIN and RING_HASH are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true.
     * Check the LocalityLbPolicy enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string locality_lb_policy = 131431487;</code>
     * @param string $var
     * @return $this
     */
    public function setLocalityLbPolicy($var)
    {
        GPBUtil::checkString($var, True);
        $this->locality_lb_policy = $var;

        return $this;
    }

    /**
     * This field denotes the logging options for the load balancer traffic served by this backend service. If logging is enabled, logs will be exported to Stackdriver.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceLogConfig log_config = 351299741;</code>
     * @return \Google\Cloud\Compute\V1\BackendServiceLogConfig|null
     */
    public function getLogConfig()
    {
        return $this->log_config;
    }

    public function hasLogConfig()
    {
        return isset($this->log_config);
    }

    public function clearLogConfig()
    {
        unset($this->log_config);
    }

    /**
     * This field denotes the logging options for the load balancer traffic served by this backend service. If logging is enabled, logs will be exported to Stackdriver.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.BackendServiceLogConfig log_config = 351299741;</code>
     * @param \Google\Cloud\Compute\V1\BackendServiceLogConfig $var
     * @return $this
     */
    public function setLogConfig($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\BackendServiceLogConfig::class);
        $this->log_config = $var;

        return $this;
    }

    /**
     * Specifies the default maximum duration (timeout) for streams to this service. Duration is computed from the beginning of the stream until the response has been completely processed, including all retries. A stream that does not complete in this duration is closed. If not specified, there will be no timeout limit, i.e. the maximum duration is infinite. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. This field is only allowed when the loadBalancingScheme of the backend service is INTERNAL_SELF_MANAGED.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.Duration max_stream_duration = 61428376;</code>
     * @return \Google\Cloud\Compute\V1\Duration|null
     */
    public function getMaxStreamDuration()
    {
        return $this->max_stream_duration;
    }

    public function hasMaxStreamDuration()
    {
        return isset($this->max_stream_duration);
    }

    public function clearMaxStreamDuration()
    {
        unset($this->max_stream_duration);
    }

    /**
     * Specifies the default maximum duration (timeout) for streams to this service. Duration is computed from the beginning of the stream until the response has been completely processed, including all retries. A stream that does not complete in this duration is closed. If not specified, there will be no timeout limit, i.e. the maximum duration is infinite. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. This field is only allowed when the loadBalancingScheme of the backend service is INTERNAL_SELF_MANAGED.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.Duration max_stream_duration = 61428376;</code>
     * @param \Google\Cloud\Compute\V1\Duration $var
     * @return $this
     */
    public function setMaxStreamDuration($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\Duration::class);
        $this->max_stream_duration = $var;

        return $this;
    }

    /**
     * Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
     *
     * Generated from protobuf field <code>optional string name = 3373707;</code>
     * @return string
     */
    public function getName()
    {
        return isset($this->name) ? $this->name : '';
    }

    public function hasName()
    {
        return isset($this->name);
    }

    public function clearName()
    {
        unset($this->name);
    }

    /**
     * Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
     *
     * Generated from protobuf field <code>optional string name = 3373707;</code>
     * @param string $var
     * @return $this
     */
    public function setName($var)
    {
        GPBUtil::checkString($var, True);
        $this->name = $var;

        return $this;
    }

    /**
     * The URL of the network to which this backend service belongs. This field can only be specified when the load balancing scheme is set to INTERNAL.
     *
     * Generated from protobuf field <code>optional string network = 232872494;</code>
     * @return string
     */
    public function getNetwork()
    {
        return isset($this->network) ? $this->network : '';
    }

    public function hasNetwork()
    {
        return isset($this->network);
    }

    public function clearNetwork()
    {
        unset($this->network);
    }

    /**
     * The URL of the network to which this backend service belongs. This field can only be specified when the load balancing scheme is set to INTERNAL.
     *
     * Generated from protobuf field <code>optional string network = 232872494;</code>
     * @param string $var
     * @return $this
     */
    public function setNetwork($var)
    {
        GPBUtil::checkString($var, True);
        $this->network = $var;

        return $this;
    }

    /**
     * Settings controlling the eviction of unhealthy hosts from the load balancing pool for the backend service. If not set, this feature is considered disabled. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, HTTP2, or GRPC, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.OutlierDetection outlier_detection = 354625086;</code>
     * @return \Google\Cloud\Compute\V1\OutlierDetection|null
     */
    public function getOutlierDetection()
    {
        return $this->outlier_detection;
    }

    public function hasOutlierDetection()
    {
        return isset($this->outlier_detection);
    }

    public function clearOutlierDetection()
    {
        unset($this->outlier_detection);
    }

    /**
     * Settings controlling the eviction of unhealthy hosts from the load balancing pool for the backend service. If not set, this feature is considered disabled. This field is applicable to either: - A regional backend service with the service_protocol set to HTTP, HTTPS, HTTP2, or GRPC, and load_balancing_scheme set to INTERNAL_MANAGED. - A global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED. 
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.OutlierDetection outlier_detection = 354625086;</code>
     * @param \Google\Cloud\Compute\V1\OutlierDetection $var
     * @return $this
     */
    public function setOutlierDetection($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\OutlierDetection::class);
        $this->outlier_detection = $var;

        return $this;
    }

    /**
     * Deprecated in favor of portName. The TCP port to connect on the backend. The default value is 80. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port.
     *
     * Generated from protobuf field <code>optional int32 port = 3446913;</code>
     * @return int
     */
    public function getPort()
    {
        return isset($this->port) ? $this->port : 0;
    }

    public function hasPort()
    {
        return isset($this->port);
    }

    public function clearPort()
    {
        unset($this->port);
    }

    /**
     * Deprecated in favor of portName. The TCP port to connect on the backend. The default value is 80. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port.
     *
     * Generated from protobuf field <code>optional int32 port = 3446913;</code>
     * @param int $var
     * @return $this
     */
    public function setPort($var)
    {
        GPBUtil::checkInt32($var);
        $this->port = $var;

        return $this;
    }

    /**
     * A named port on a backend instance group representing the port for communication to the backend VMs in that group. The named port must be [defined on each backend instance group](https://cloud.google.com/load-balancing/docs/backend-service#named_ports). This parameter has no meaning if the backends are NEGs. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port_name.
     *
     * Generated from protobuf field <code>optional string port_name = 41534345;</code>
     * @return string
     */
    public function getPortName()
    {
        return isset($this->port_name) ? $this->port_name : '';
    }

    public function hasPortName()
    {
        return isset($this->port_name);
    }

    public function clearPortName()
    {
        unset($this->port_name);
    }

    /**
     * A named port on a backend instance group representing the port for communication to the backend VMs in that group. The named port must be [defined on each backend instance group](https://cloud.google.com/load-balancing/docs/backend-service#named_ports). This parameter has no meaning if the backends are NEGs. For Internal TCP/UDP Load Balancing and Network Load Balancing, omit port_name.
     *
     * Generated from protobuf field <code>optional string port_name = 41534345;</code>
     * @param string $var
     * @return $this
     */
    public function setPortName($var)
    {
        GPBUtil::checkString($var, True);
        $this->port_name = $var;

        return $this;
    }

    /**
     * The protocol this BackendService uses to communicate with backends. Possible values are HTTP, HTTPS, HTTP2, TCP, SSL, UDP or GRPC. depending on the chosen load balancer or Traffic Director configuration. Refer to the documentation for the load balancers or for Traffic Director for more information. Must be set to GRPC when the backend service is referenced by a URL map that is bound to target gRPC proxy.
     * Check the Protocol enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string protocol = 84577944;</code>
     * @return string
     */
    public function getProtocol()
    {
        return isset($this->protocol) ? $this->protocol : '';
    }

    public function hasProtocol()
    {
        return isset($this->protocol);
    }

    public function clearProtocol()
    {
        unset($this->protocol);
    }

    /**
     * The protocol this BackendService uses to communicate with backends. Possible values are HTTP, HTTPS, HTTP2, TCP, SSL, UDP or GRPC. depending on the chosen load balancer or Traffic Director configuration. Refer to the documentation for the load balancers or for Traffic Director for more information. Must be set to GRPC when the backend service is referenced by a URL map that is bound to target gRPC proxy.
     * Check the Protocol enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string protocol = 84577944;</code>
     * @param string $var
     * @return $this
     */
    public function setProtocol($var)
    {
        GPBUtil::checkString($var, True);
        $this->protocol = $var;

        return $this;
    }

    /**
     * [Output Only] URL of the region where the regional backend service resides. This field is not applicable to global backend services. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
     *
     * Generated from protobuf field <code>optional string region = 138946292;</code>
     * @return string
     */
    public function getRegion()
    {
        return isset($this->region) ? $this->region : '';
    }

    public function hasRegion()
    {
        return isset($this->region);
    }

    public function clearRegion()
    {
        unset($this->region);
    }

    /**
     * [Output Only] URL of the region where the regional backend service resides. This field is not applicable to global backend services. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
     *
     * Generated from protobuf field <code>optional string region = 138946292;</code>
     * @param string $var
     * @return $this
     */
    public function setRegion($var)
    {
        GPBUtil::checkString($var, True);
        $this->region = $var;

        return $this;
    }

    /**
     * [Output Only] The resource URL for the security policy associated with this backend service.
     *
     * Generated from protobuf field <code>optional string security_policy = 171082513;</code>
     * @return string
     */
    public function getSecurityPolicy()
    {
        return isset($this->security_policy) ? $this->security_policy : '';
    }

    public function hasSecurityPolicy()
    {
        return isset($this->security_policy);
    }

    public function clearSecurityPolicy()
    {
        unset($this->security_policy);
    }

    /**
     * [Output Only] The resource URL for the security policy associated with this backend service.
     *
     * Generated from protobuf field <code>optional string security_policy = 171082513;</code>
     * @param string $var
     * @return $this
     */
    public function setSecurityPolicy($var)
    {
        GPBUtil::checkString($var, True);
        $this->security_policy = $var;

        return $this;
    }

    /**
     * This field specifies the security settings that apply to this backend service. This field is applicable to a global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.SecuritySettings security_settings = 478649922;</code>
     * @return \Google\Cloud\Compute\V1\SecuritySettings|null
     */
    public function getSecuritySettings()
    {
        return $this->security_settings;
    }

    public function hasSecuritySettings()
    {
        return isset($this->security_settings);
    }

    public function clearSecuritySettings()
    {
        unset($this->security_settings);
    }

    /**
     * This field specifies the security settings that apply to this backend service. This field is applicable to a global backend service with the load_balancing_scheme set to INTERNAL_SELF_MANAGED.
     *
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.SecuritySettings security_settings = 478649922;</code>
     * @param \Google\Cloud\Compute\V1\SecuritySettings $var
     * @return $this
     */
    public function setSecuritySettings($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\SecuritySettings::class);
        $this->security_settings = $var;

        return $this;
    }

    /**
     * [Output Only] Server-defined URL for the resource.
     *
     * Generated from protobuf field <code>optional string self_link = 456214797;</code>
     * @return string
     */
    public function getSelfLink()
    {
        return isset($this->self_link) ? $this->self_link : '';
    }

    public function hasSelfLink()
    {
        return isset($this->self_link);
    }

    public function clearSelfLink()
    {
        unset($this->self_link);
    }

    /**
     * [Output Only] Server-defined URL for the resource.
     *
     * Generated from protobuf field <code>optional string self_link = 456214797;</code>
     * @param string $var
     * @return $this
     */
    public function setSelfLink($var)
    {
        GPBUtil::checkString($var, True);
        $this->self_link = $var;

        return $this;
    }

    /**
     * URLs of networkservices.ServiceBinding resources. Can only be set if load balancing scheme is INTERNAL_SELF_MANAGED. If set, lists of backends and health checks must be both empty.
     *
     * Generated from protobuf field <code>repeated string service_bindings = 133581016;</code>
     * @return \Google\Protobuf\Internal\RepeatedField
     */
    public function getServiceBindings()
    {
        return $this->service_bindings;
    }

    /**
     * URLs of networkservices.ServiceBinding resources. Can only be set if load balancing scheme is INTERNAL_SELF_MANAGED. If set, lists of backends and health checks must be both empty.
     *
     * Generated from protobuf field <code>repeated string service_bindings = 133581016;</code>
     * @param array<string>|\Google\Protobuf\Internal\RepeatedField $var
     * @return $this
     */
    public function setServiceBindings($var)
    {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::STRING);
        $this->service_bindings = $arr;

        return $this;
    }

    /**
     * Type of session affinity to use. The default is NONE. Only NONE and HEADER_FIELD are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. For more details, see: [Session Affinity](https://cloud.google.com/load-balancing/docs/backend-service#session_affinity).
     * Check the SessionAffinity enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string session_affinity = 463888561;</code>
     * @return string
     */
    public function getSessionAffinity()
    {
        return isset($this->session_affinity) ? $this->session_affinity : '';
    }

    public function hasSessionAffinity()
    {
        return isset($this->session_affinity);
    }

    public function clearSessionAffinity()
    {
        unset($this->session_affinity);
    }

    /**
     * Type of session affinity to use. The default is NONE. Only NONE and HEADER_FIELD are supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. For more details, see: [Session Affinity](https://cloud.google.com/load-balancing/docs/backend-service#session_affinity).
     * Check the SessionAffinity enum for the list of possible values.
     *
     * Generated from protobuf field <code>optional string session_affinity = 463888561;</code>
     * @param string $var
     * @return $this
     */
    public function setSessionAffinity($var)
    {
        GPBUtil::checkString($var, True);
        $this->session_affinity = $var;

        return $this;
    }

    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.Subsetting subsetting = 450283536;</code>
     * @return \Google\Cloud\Compute\V1\Subsetting|null
     */
    public function getSubsetting()
    {
        return $this->subsetting;
    }

    public function hasSubsetting()
    {
        return isset($this->subsetting);
    }

    public function clearSubsetting()
    {
        unset($this->subsetting);
    }

    /**
     * Generated from protobuf field <code>optional .google.cloud.compute.v1.Subsetting subsetting = 450283536;</code>
     * @param \Google\Cloud\Compute\V1\Subsetting $var
     * @return $this
     */
    public function setSubsetting($var)
    {
        GPBUtil::checkMessage($var, \Google\Cloud\Compute\V1\Subsetting::class);
        $this->subsetting = $var;

        return $this;
    }

    /**
     * The backend service timeout has a different meaning depending on the type of load balancer. For more information see, Backend service settings. The default is 30 seconds. The full range of timeout values allowed goes from 1 through 2,147,483,647 seconds. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. Instead, use maxStreamDuration.
     *
     * Generated from protobuf field <code>optional int32 timeout_sec = 79994995;</code>
     * @return int
     */
    public function getTimeoutSec()
    {
        return isset($this->timeout_sec) ? $this->timeout_sec : 0;
    }

    public function hasTimeoutSec()
    {
        return isset($this->timeout_sec);
    }

    public function clearTimeoutSec()
    {
        unset($this->timeout_sec);
    }

    /**
     * The backend service timeout has a different meaning depending on the type of load balancer. For more information see, Backend service settings. The default is 30 seconds. The full range of timeout values allowed goes from 1 through 2,147,483,647 seconds. This value can be overridden in the PathMatcher configuration of the UrlMap that references this backend service. Not supported when the backend service is referenced by a URL map that is bound to target gRPC proxy that has validateForProxyless field set to true. Instead, use maxStreamDuration.
     *
     * Generated from protobuf field <code>optional int32 timeout_sec = 79994995;</code>
     * @param int $var
     * @return $this
     */
    public function setTimeoutSec($var)
    {
        GPBUtil::checkInt32($var);
        $this->timeout_sec = $var;

        return $this;
    }

}