@java.lang.Override
  public com.google.cloud.visionai.v1.SchemaKeySortingStrategy getSchemaKeySortingStrategy() {
    if (sortSpecCase_ == 9) {
      return (com.google.cloud.visionai.v1.SchemaKeySortingStrategy) sortSpec_;
    }
    return com.google.cloud.visionai.v1.SchemaKeySortingStrategy.getDefaultInstance();
  }
<pre>
Sort by the value under the data schema key.
</pre>

<code>.google.cloud.visionai.v1.SchemaKeySortingStrategy schema_key_sorting_strategy = 9;
</code>

@return The schemaKeySortingStrategy.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/SearchAssetsRequest.java