@java.lang.Override
  public boolean equals(final java.lang.Object obj) {
    if (obj == this) {
      return true;
    }
    if (!(obj instanceof com.google.cloud.speech.v2.RecognitionResponseMetadata)) {
      return super.equals(obj);
    }
    com.google.cloud.speech.v2.RecognitionResponseMetadata other =
        (com.google.cloud.speech.v2.RecognitionResponseMetadata) obj;

    if (!getRequestId().equals(other.getRequestId())) return false;
    if (hasTotalBilledDuration() != other.hasTotalBilledDuration()) return false;
    if (hasTotalBilledDuration()) {
      if (!getTotalBilledDuration().equals(other.getTotalBilledDuration())) return false;
    }
    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
    return true;
  }
<pre>
When available, billed audio seconds for the corresponding request.
</pre>

<code>.google.protobuf.Duration total_billed_duration = 6;</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/RecognitionResponseMetadata.java