public com.google.protobuf.TimestampOrBuilder getResponseTimeOrBuilder() {
      if (responseTimeBuilder_ != null) {
        return responseTimeBuilder_.getMessageOrBuilder();
      } else {
        return responseTime_ == null
            ? com.google.protobuf.Timestamp.getDefaultInstance()
            : responseTime_;
      }
    }
<pre>
Output only. The time that this attempt response was received.

`response_time` will be truncated to the nearest microsecond.
</pre>

<code>.google.protobuf.Timestamp response_time = 3;</code>
java-tasks/proto-google-cloud-tasks-v2beta2/src/main/java/com/google/cloud/tasks/v2beta2/AttemptStatus.java