def __init__(self, mean: float=0, std: float=1, a: float=(- 2), b: float=2, **kwargs) -> None:
    super().__init__(**kwargs)
    self.mean = mean
    self.std = std
    self.a = a
    self.b = b
def __init__(self, mean: float=0, std: float=1, a: float=(- 2), b: float=2, **kwargs) -> None:
    super().__init__(**kwargs)
    self.mean = mean
    self.std = std
    self.a = a
    self.b = b