CallOptions

{ Call options

@type array $headers
      Key-value array containing headers
@type int $timeoutMillis
      The timeout in milliseconds for the call.
@type array $transportOptions
      Transport-specific call options. See {[\Google\ApiCore\Options\CallOptions::setTransportOptions}.

](../../../Google/ApiCore/Options/CallOptions.html) @type RetrySettings|array $retrySettings A retry settings override for the call. If $retrySettings is an array, the settings will be merged with the method's default retry settings. If $retrySettings is a RetrySettings object, that object will be used instead of the method defaults. }

{ Transport-specific call-time options.

@type array $grpcOptions
      Key-value pairs for gRPC-specific options passed as the `$options` argument to {\Grpc\BaseStub}
      request methods. Current options are `call_credentials_callback` and `timeout`.
      **NOTE**: This library sets `call_credentials_callback` using {\Google\ApiCore\CredentialsWrapper}, and `timeout`
      using the `timeoutMillis` call option, so these options are not very useful.
@type array $grpcFallbackOptions
      Key-value pairs for gRPC fallback specific options passed as the `$options` argument to the
      `$httpHandler` callable. By default these are passed to {\GuzzleHttp\Client} as request options.
      See https://docs.guzzlephp.org/en/stable/request-options.html.
@type array $restOptions
      Key-value pairs for REST-specific options passed as the `$options` argument to the `$httpHandler`
      callable. By default these are passed to {\GuzzleHttp\Client} as request options.
      See https://docs.guzzlephp.org/en/stable/request-options.html.

}