code: public java.util.List<SchemaExtensionInfo> getSchemaExtensionsInfo() {
          if (schemaExtensionsInfo == null) {
              schemaExtensionsInfo = new com.amazonaws.internal.SdkInternalList<SchemaExtensionInfo>();
          }
          return schemaExtensionsInfo;
      }
docs: <p>
  Information about the schema extensions applied to the directory.
  </p>
  
  @return Information about the schema extensions applied to the directory.