code: def get_tags_by_fact_id(self, fact_id):
          
          if not fact_id in self.all_facts_id:
              raise NoHamsterData('facts', fact_id)
  
          query = "SELECT tag_id FROM fact_tags WHERE fact_id = %s"
          return [self.tags[row[0]] for row in self._query(query % fact_id)]
docs: Obtains the tags associated by a fact_id.
  
          This function returns a list of the tags name associated
          to a fact, such as ['foo', 'bar', 'eggs'].
          If the fact has no tags, it will return a empty list.
          If there are no fact with id == fact_id, a NoHamsterData
          exception will be raise