docs: def generic_visit(self, node: AST, dfltChaining: bool = True) -> str:
          """Default handler, called if no explicit visitor function exists for
          a node.
          """
          for field, value in ast.iter_fields(node):
              if isinstance(value, list):
                  for item in value:
                      if isinstance(item, AST):
                          self.visit(item)
              elif isinstance(value, AST):
                  self.visit(value)