def __init__(self, delta: float = 0.5, aux_weights: list = [1, 0.4, 0.4]):
        """
        delta: Controls weight given to FP and FN. This equals to dice score when delta=0.5
        """
        super().__init__()
        self.delta = delta
        self.aux_weights = aux_weights

        delta: Controls weight given to FP and FN. This equals to dice score when delta=0.5
        
semseg/losses.py