public static com.google.cloud.tasks.v2beta2.AcknowledgeTaskRequest parseFrom(
      com.google.protobuf.ByteString data,
      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws com.google.protobuf.InvalidProtocolBufferException {
    return PARSER.parseFrom(data, extensionRegistry);
  }
<pre>
Required. The task's current schedule time, available in the
[schedule_time][google.cloud.tasks.v2beta2.Task.schedule_time] returned by
[LeaseTasks][google.cloud.tasks.v2beta2.CloudTasks.LeaseTasks] response or
[RenewLease][google.cloud.tasks.v2beta2.CloudTasks.RenewLease] response.
This restriction is to ensure that your worker currently holds the lease.
</pre>

<code>.google.protobuf.Timestamp schedule_time = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-tasks/proto-google-cloud-tasks-v2beta2/src/main/java/com/google/cloud/tasks/v2beta2/AcknowledgeTaskRequest.java