private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.tasks.v2beta3.Attempt,
            com.google.cloud.tasks.v2beta3.Attempt.Builder,
            com.google.cloud.tasks.v2beta3.AttemptOrBuilder>
        getFirstAttemptFieldBuilder() {
      if (firstAttemptBuilder_ == null) {
        firstAttemptBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.tasks.v2beta3.Attempt,
                com.google.cloud.tasks.v2beta3.Attempt.Builder,
                com.google.cloud.tasks.v2beta3.AttemptOrBuilder>(
                getFirstAttempt(), getParentForChildren(), isClean());
        firstAttempt_ = null;
      }
      return firstAttemptBuilder_;
    }
<pre>
Output only. The status of the task's first attempt.

Only [dispatch_time][google.cloud.tasks.v2beta3.Attempt.dispatch_time] will
be set. The other [Attempt][google.cloud.tasks.v2beta3.Attempt] information
is not retained by Cloud Tasks.
</pre>

<code>.google.cloud.tasks.v2beta3.Attempt first_attempt = 8;</code>
java-tasks/proto-google-cloud-tasks-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Task.java