public Builder mergeFrom(com.google.cloud.vertexai.api.ApiAuth other) {
      if (other == com.google.cloud.vertexai.api.ApiAuth.getDefaultInstance()) return this;
      switch (other.getAuthConfigCase()) {
        case API_KEY_CONFIG:
          {
            mergeApiKeyConfig(other.getApiKeyConfig());
            break;
          }
        case AUTHCONFIG_NOT_SET:
          {
            break;
          }
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
The generic reusable api auth config.
</pre>

Protobuf type {@code google.cloud.vertexai.v1.ApiAuth}
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/ApiAuth.java