def __init__(self, margin: float, gamma: float) -> None:
        """

        Args:
            margin: margin to use
            gamma: gamma to use
        """
        super().__init__()
        self.margin = margin
        self.gamma = gamma
        self.soft_plus = nn.Softplus()


        Args:
            margin: margin to use
            gamma: gamma to use
        
catalyst/contrib/losses/circle.py