parameters: (self, rhs)
return_statement: return self._key in rhs
docstring: Check to see whether key is in rhs.
  
      Args:
        rhs: dict
  
      Returns:
        bool
docstring_summary: Check to see whether key is in rhs.
docstring_tokens: Check to see whether key is in rhs .
function: def equals(self, rhs):
      """Check to see whether key is in rhs.
  
      Args:
        rhs: dict
  
      Returns:
        bool
      """
  
      return self._key in rhs
function_tokens: def equals ( self , rhs ) : return self . _key in rhs