@java.lang.Override
    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
      com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
          output,
          internalGetEnvironmentVariables(),
          EnvironmentVariablesDefaultEntryHolder.defaultEntry,
          1);
      getUnknownFields().writeTo(output);
    }
<pre>
Environment variables.
</pre>

<code>map&lt;string, string&gt; environment_variables = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/AnalyzerDefinition.java