private com.google.protobuf.MapField<java.lang.String, java.lang.String>
      internalGetAnnotations() {
    if (annotations_ == null) {
      return com.google.protobuf.MapField.emptyMapField(AnnotationsDefaultEntryHolder.defaultEntry);
    }
    return annotations_;
  }
<pre>
Labels as key value pairs.
</pre>

<code>map&lt;string, string&gt; labels = 4;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Stream.java