parameters: (self, name, concrete_function)
docstring: Adds a signature to the _SignatureMap.
docstring_summary: Adds a signature to the _SignatureMap.
docstring_tokens: Adds a signature to the _SignatureMap .
function: def _add_signature(self, name, concrete_function):
      """Adds a signature to the _SignatureMap."""
      # Ideally this object would be immutable, but restore is streaming so we do
      # need a private API for adding new signatures to an existing object.
      self._signatures[name] = concrete_function
function_tokens: def _add_signature ( self , name , concrete_function ) : # Ideally this object would be immutable, but restore is streaming so we do # need a private API for adding new signatures to an existing object. self . _signatures [ name ] = concrete_function