, default=None, dest=None, required=False,
ignore=False, type=text_type, location=('...=True):
self.name = name
self.default = default
self.dest = dest
self.required...nullable=False, help='password is required')
parser.add_argument('address', default='上海市',...True, type=str, nullable=False, help='password is required')
parser.add_argument('sex', choices..., type=self.password_validate,
nullable=False, help='password invalid must