[Python] how can i fix a problem regarding problem regarding 'L1Dist.call()'

class L1Dist(Layer):
def __init__(self, **kwargs):
super().__init__()

def call(self, input_embedding, validation_img):
return tf.math.abs(input_embedding - validation_img)


Signature of method 'L1Dist.call()' does not match signature of the base method in class'Layer'

how can i fix this problem?

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