code: def _get_string_type_from_token(token_type):
      
      return_value = None
      if token_type in [TokenType.BeginSingleQuotedLiteral,
                        TokenType.EndSingleQuotedLiteral]:
          return_value = "Single"
      elif token_type in [TokenType.BeginDoubleQuotedLiteral,
                          TokenType.EndDoubleQuotedLiteral]:
          return_value = "Double"
  
      assert return_value is not None
      return return_value
docs: Return 'Single' or 'Double' depending on what kind of string this is.