private com.google.protobuf.SingleFieldBuilderV3<
              com.google.cloud.visionai.v1.GcsSource,
              com.google.cloud.visionai.v1.GcsSource.Builder,
              com.google.cloud.visionai.v1.GcsSourceOrBuilder>
          getInstancesSchemaFieldBuilder() {
        if (instancesSchemaBuilder_ == null) {
          instancesSchemaBuilder_ =
              new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.cloud.visionai.v1.GcsSource,
                  com.google.cloud.visionai.v1.GcsSource.Builder,
                  com.google.cloud.visionai.v1.GcsSourceOrBuilder>(
                  getInstancesSchema(), getParentForChildren(), isClean());
          instancesSchema_ = null;
        }
        return instancesSchemaBuilder_;
      }
<pre>
Cloud Storage location to a YAML file that defines the format of a single
instance used in prediction and explanation requests.
</pre>

<code>.google.cloud.visionai.v1.GcsSource instances_schema = 1;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/CustomProcessorSourceInfo.java