code: def check_arrange_act_spacing(self) -> typing.Generator[AAAError, None, None]:
          
          yield from self.check_block_spacing(
              LineType.arrange,
              LineType.act,
              'AAA03 expected 1 blank line before Act block, found {}',
          )
docs: * When no spaces found, point error at line above act block
          * When too many spaces found, point error at 2nd blank line