class_docstr: Abstract class to check if an AST node needs modification, potentially modify the node.
docstr: Modify an AST node.
docstr_tok: ["Modify","an","AST","node","."]
code: def modify_node(self, node):
      """Modify an AST node."""
  
imports: from __future__ import absolute_import
  from abc import abstractmethod
label_desc: Use image node_id 3 for calling the Modifier obj's underlying member method code with example usage: obj.modify_node(node) without return types