public Builder mergeFrom(com.google.cloud.tasks.v2beta3.PullMessage other) {
      if (other == com.google.cloud.tasks.v2beta3.PullMessage.getDefaultInstance()) return this;
      if (other.getPayload() != com.google.protobuf.ByteString.EMPTY) {
        setPayload(other.getPayload());
      }
      if (!other.getTag().isEmpty()) {
        tag_ = other.tag_;
        bitField0_ |= 0x00000002;
        onChanged();
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
Pull Message.

This proto can only be used for tasks in a queue which has
[PULL][google.cloud.tasks.v2beta3.Queue.type] type. It currently exists for
backwards compatibility with the App Engine Task Queue SDK. This message type
maybe returned with methods
[list][google.cloud.tasks.v2beta3.CloudTask.ListTasks] and
[get][google.cloud.tasks.v2beta3.CloudTask.ListTasks], when the response view
is [FULL][google.cloud.tasks.v2beta3.Task.View.Full].
</pre>

Protobuf type {@code google.cloud.tasks.v2beta3.PullMessage}
java-tasks/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/PullMessage.java