1, Improve the Region spec for the ``has_many :towns, class_name: 'Unidom::Geo::China::Town'`` macro.
1, Improve the Region spec for the ``has_many :towns, class_name:
'Unidom::Geo::China::Town'`` macro.

topbitdu/unidom-geo-china,topbitdu/unidom-geo-china,topbitdu/unidom-geo-china