code: def has_value(cls, value):
          
          return any(value.lower() == item.value.lower() for item in cls)
docs: Tests whether CustomUrlParam contains a constant defined with a string `value`
  
          :param value: The string representation of the enum constant
          :type value: str
          :return: `True` if there exists a constant with a string value `value`, `False` otherwise
          :rtype: bool