from dataclasses import dataclass

@dataclass
class F:
    i : int
    f : float

    def m(self, other : int) -> float:
        assert other != 1000, "oh no!"
        return self.f + float(other)

f = F(f=3.1, i=10)

a = 3
res = [float(x) for x in range(4) if x % 2 == 0]
for i in range(10):
    res.append(float(a * 3) ** float(i))
    res.append(f.m(i))

print(res)
assert len(res) > 0 and not 12345.6 in res

from enum import Enum
class EFoo(Enum):
    A = 1
    B = 2

a_inst = EFoo.A