public com.google.protobuf.Timestamp.Builder getResponseTimeBuilder() {
      bitField0_ |= 0x00000004;
      onChanged();
      return getResponseTimeFieldBuilder().getBuilder();
    }
<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-v2beta3/src/main/java/com/google/cloud/tasks/v2beta3/Attempt.java