parameters: (self, dump)
docstring: Constructor of ExpressionEvaluator.
  
      Args:
        dump: an instance of `DebugDumpDir`.
docstring_summary: Constructor of ExpressionEvaluator.
docstring_tokens: Constructor of ExpressionEvaluator .
function: def __init__(self, dump):
      """Constructor of ExpressionEvaluator.
  
      Args:
        dump: an instance of `DebugDumpDir`.
      """
      self._dump = dump
      self._cached_tensor_values = {}
function_tokens: def __init__ ( self , dump ) : self . _dump = dump self . _cached_tensor_values = { }