public com.google.cloud.vertexai.api.ApiAuth.ApiKeyConfig.Builder getClientSecretBuilder() {
        bitField0_ |= 0x00000020;
        onChanged();
        return getClientSecretFieldBuilder().getBuilder();
      }
<pre>
The application secret for the app registered in Azure.
</pre>

<code>.google.cloud.vertexai.v1.ApiAuth.ApiKeyConfig client_secret = 2;</code>
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/SharePointSources.java