code: def generic_visit(self, node: ast.AST) -> NoReturn:
      raise NotImplementedError(
          "Unable to parse %s object" % type(node).__name__
      )
  
imports: from __future__ import annotations
  import ast
  from typing import NoReturn, overload
label_desc: Use image node_id 19 for calling the _UnparseVisitor obj's underlying member method code with example usage: obj.generic_visit(node) without return types