@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + NAME_FIELD_NUMBER;
    hash = (53 * hash) + getName().hashCode();
    if (hasScheduleTime()) {
      hash = (37 * hash) + SCHEDULE_TIME_FIELD_NUMBER;
      hash = (53 * hash) + getScheduleTime().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<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