code: def import_as_name(self, name_tok, as_name_opt):
          
          asname_name = asname_loc = as_loc = None
          loc = name_tok.loc
          if as_name_opt:
              as_loc, asname = as_name_opt
              asname_name = asname.value
              asname_loc = asname.loc
              loc = loc.join(asname.loc)
          return ast.alias(name=name_tok.value, asname=asname_name,
                           loc=loc, name_loc=name_tok.loc, as_loc=as_loc, asname_loc=asname_loc)
docs: import_as_name: NAME ['as' NAME]