docs: def from_string(cls, string):
          """
          Simply logs a warning if the desired enum value is not found.
  
          :param string:
          :return:
          """
  
          # find enum value
          for attr in dir(cls):
              value = getattr(cls, attr)
              if value == string:
                  return value
  
          # if not found, log warning and return the value passed in
          logger.warning("{} is not a valid enum value for {}.".format(string, cls.__name__))
          return string