code: def set(cls, values):
          
          cls.mrc_out_el.text = values.get("mrc", "")
          cls.oai_out_el.text = values.get("oai", "")
          cls.dc_out_el.text = values.get("dc", "")
          cls.filename = values.get("fn", "fn")
  
          cls.values = values
docs: Set the elements from the data obtained from REST API.
  
          Args:
              values (dict): Dict with ``mrc``, ``oai``, ``dc`` and ``fn`` keys.