docs: def sets(self, keyword, value):
          """Set the element of the list after the given keyword as string.
  
          Parameters
          ----------
          keyword : str
              The keyword parameter to find in the list.
              Putting a colon before the keyword is optional, if no colon is
              given, it is added automatically (e.g. "keyword" will be found as
              ":keyword" in the list).
  
          value : str
              The value is instantiated as KQMLString and added to the list.
  
          Example:
              kl = KQMLList.from_string('(FAILURE)')
              kl.sets('reason', 'this is a custom string message, not a token')
          """
          if isinstance(value, str):
              value = KQMLString(value)
          self.set(keyword, value)