code: def _merge_many_to_one_field_from_fkey(self, main_infos, prop, result):
          
          if prop.columns[0].foreign_keys and prop.key.endswith('_id'):
              # We have a foreign key, we'll try to merge it with the
              # associated foreign key
              rel_name = prop.key[0:-3]
              for val in result:
                  if val["name"] == rel_name:
                      val["label"] = main_infos['label']
                      main_infos = None  # We can forget this field in export
                      break
          return main_infos
docs: Find the relationship associated with this fkey and set the title
  
          :param dict main_infos: The already collected datas about this column
          :param obj prop: The property mapper of the relationship
          :param list result: The actual collected headers
          :returns: a main_infos dict or None