class M:
s = attr.ib(validator=instance_of(str))
i = attr.ib(validator=instance_of(int))
nullable = attr.ib()
d = datetime_field()
lst1 = list_field(int)
lst2 = list_field(X)
class M:
s = string_field(factory=lambda: 'hello')
d = datetime_field(factory=lambda: dt)
i = int_field(factory=lambda: 2)
dec = decimal_field(factory=lambda: decimal.Decimal('3'))
f = float_field(factory=lambda: 2.3)
b = bool_field(factory=lambda: True)
by = bytes_field(factory=lambda: b'x')
u = url_field(factory=lambda: 'https://foo.com')
a = any_field(factory=lambda: 1)
o = object_field(int, factory=lambda: 2)
k = key(int, factory=lambda: 3)
class M:
f = datetime_field()
class M:
dt = datetime_field()
sub = object_field(SELF, is_optional=True, default=None)
class M:
a = datetime_field()
class M:
f = datetime_field(is_optional=True)