def METHOD_NAME():
    class Model(BaseModel):
        a: float
        b: int = 2
        c: int
        def __init__(self, a: float, b: int):
            super().__init__(a=a, b=b, c=1)
        model_config = ConfigDict(extra='allow')
    assert _equals(str(signature(Model)), '(a: float, b: int) -> None')