@java.lang.Override
  public boolean containsOutputStreamsMapping(java.lang.String key) {
    if (key == null) {
      throw new NullPointerException("map key");
    }
    return internalGetOutputStreamsMapping().getMap().containsKey(key);
  }
<pre>
Map from the output parameter in the definition to the real stream.
E.g., suppose you had a stream sink operator named "output-0" and you try
to send to the real stream "stream-0". You can add the following
mapping: [output-0: stream-0].
</pre>

<code>map&lt;string, string&gt; output_streams_mapping = 7;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Analysis.java