def METHOD_NAME(self, groupinfo, group_name, alias):
    BaseGenerator.METHOD_NAME(self, groupinfo, group_name, alias)
    type_elem = groupinfo.elem
    if type_elem.get('bitwidth') == '64':
        self.enumType[group_name] = 'VkFlags64'
    else:
        self.enumType[group_name] = 'VkFlags'