@java.lang.Override
  public final boolean isInitialized() {
    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
    return true;
  }
<pre>
Map from provided filename to the transcription metadata for that file.
</pre>

<code>
map&lt;string, .google.cloud.speech.v2.BatchRecognizeTranscriptionMetadata&gt; transcription_metadata = 1;
</code>
java-speech/proto-google-cloud-speech-v2/src/main/java/com/google/cloud/speech/v2/BatchRecognizeMetadata.java