public com.google.cloud.vision.v1p3beta1.GcsSourceOrBuilder getGcsSourceOrBuilder() {
      if (gcsSourceBuilder_ != null) {
        return gcsSourceBuilder_.getMessageOrBuilder();
      } else {
        return gcsSource_ == null
            ? com.google.cloud.vision.v1p3beta1.GcsSource.getDefaultInstance()
            : gcsSource_;
      }
    }
<pre>
The Google Cloud Storage location to read the input from.
</pre>

<code>.google.cloud.vision.v1p3beta1.GcsSource gcs_source = 1;</code>
java-vision/proto-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/InputConfig.java