activation.py

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# Licensed under the Apache License, Version 2.0 (the "License");
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# http://www.apache.org/licenses/LICENSE-2.0
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from ..functional import softplus, tanh
from ..module import Module


class Mish(Module):

    def forward(self, input):
        return input * tanh(softplus(input, beta=1.0, threshold=20.0))