public Builder mergeFirstAttempt(com.google.cloud.tasks.v2beta3.Attempt value) {
      if (firstAttemptBuilder_ == null) {
        if (((bitField0_ & 0x00000200) != 0)
            && firstAttempt_ != null
            && firstAttempt_ != com.google.cloud.tasks.v2beta3.Attempt.getDefaultInstance()) {
          getFirstAttemptBuilder().mergeFrom(value);
        } else {
          firstAttempt_ = value;
        }
      } else {
        firstAttemptBuilder_.mergeFrom(value);
      }
      if (firstAttempt_ != null) {
        bitField0_ |= 0x00000200;
        onChanged();
      }
      return this;
    }
<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