class_docstr: Abstraction for the state of the CFG walk for type inference.
  
  This is a value type. Only implements the strictly necessary operators.
  
  Attributes:
    types: Dict[qual_names.QN, Set[Type]], mapping symbols to the set of
      possible types.
class_docstr_tok: ["Abstraction","for","the","state","of","the","CFG","walk","for","type","inference",".","This","is","a","value","type",".","Only","implements","the","strictly","necessary","operators",".","Attributes",":","types",":","Dict","[","qual_names.QN",",","Set","[","Type","]","]",",","mapping","symbols","to","the","set","of","possible","types","."]
code: def __ne__(self, other):
      return not self.__eq__(other)
  
imports: import itertools
  from typing import Any, Callable, Dict, Set
  import gast
  from tensorflow.python.autograph.pyct import anno
  from tensorflow.python.autograph.pyct import cfg
  from tensorflow.python.autograph.pyct import qual_names
  from tensorflow.python.autograph.pyct import transformer
  from tensorflow.python.autograph.pyct.static_analysis import activity
  from tensorflow.python.autograph.pyct.static_analysis import annos
label_desc: Use image node_id 3 for calling the _TypeMap obj's underlying member method code with example usage: obj.__ne__(other) and returns: unknown