class_docstr: NodeVisitor that builds a set of all of the named identifiers in an AST
class_docstr_tok: ["NodeVisitor","that","builds","a","set","of","all","of","the","named","identifiers","in","an","AST"]
code: def __init__(self, *args, **kwargs):
      super(NameVisitor, self).__init__(*args, **kwargs)
      self.names = set()
  
imports: import re
  import copy
  import inspect
  import ast
  import textwrap
label_desc: Use image node_id 1 to create a new NameVisitor object from inherited base classes: ast with example: obj = NameVisitor()