set_subregion
Description:
Sets the subregion property to subregion.
Set subregion to null to unset the property in the postal address.
Parameters:
| this | |
| subregion | 
           the new subregion for the postal address, or   | 
      
Sets the subregion property to subregion.
Set subregion to null to unset the property in the postal address.
| this | |
| subregion | 
           the new subregion for the postal address, or   |