code: def run_script(self, script_name, keys=None, args=None):
          
          return self._scripts[script_name](keys, args)
docs: Execute a walrus script with the given arguments.
  
          :param script_name: The base name of the script to execute.
          :param list keys: Keys referenced by the script.
          :param list args: Arguments passed in to the script.
          :returns: Return value of script.
  
          .. note:: Redis scripts require two parameters, ``keys``
              and ``args``, which are referenced in lua as ``KEYS``
              and ``ARGV``.