@Nullable
  default String extractDeprecationMessage() {
    String deprecationMessageFromDecorator = extractDeprecationMessageFromDecorator(this);
    if (deprecationMessageFromDecorator != null) {
      return deprecationMessageFromDecorator;
    }
    PyAstStatementList statementList = getStatementList();
    return extractDeprecationMessage(Arrays.asList(statementList.getStatements()));
  }
@Nullable
  default String extractDeprecationMessage()