@java.lang.Override
    public /* nullable */ java.lang.String getOutputStreamsMappingOrDefault(
        java.lang.String key,
        /* nullable */
        java.lang.String defaultValue) {
      if (key == null) {
        throw new NullPointerException("map key");
      }
      java.util.Map<java.lang.String, java.lang.String> map =
          internalGetOutputStreamsMapping().getMap();
      return map.containsKey(key) ? map.get(key) : defaultValue;
    }
<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