public com.google.common.util.concurrent.ListenableFuture<com.google.iam.v1.Policy>
        getIamPolicy(com.google.iam.v1.GetIamPolicyRequest request) {
      return io.grpc.stub.ClientCalls.futureUnaryCall(
          getChannel().newCall(getGetIamPolicyMethod(), getCallOptions()), request);
    }
<pre>
Gets the access control policy for a [Queue][google.cloud.tasks.v2.Queue].
Returns an empty policy if the resource exists and does not have a policy
set.
Authorization requires the following
[Google IAM](https://cloud.google.com/iam) permission on the specified
resource parent:
* `cloudtasks.queues.getIamPolicy`
</pre>
java-tasks/grpc-google-cloud-tasks-v2/src/main/java/com/google/cloud/tasks/v2/CloudTasksGrpc.java