code: def state_abbr(self, include_territories=True):
          
          if include_territories:
              self.random_element(self.states_and_territories_abbr)
          return self.random_element(self.states_abbr)
docs: :returns: A random state or territory abbreviation.
  
          :param include_territories: If True, territories will be included.
              If False, only states will be returned.