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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the license found in the
# LICENSE file in the root directory of this source tree.
import torch
import torch.nn as nn
from mmengine.registry import MODELS
@MODELS.register_module()
class Swish(nn.Module):
"""Swish Module.
This module applies the swish function:
.. math::
Swish(x) = x * Sigmoid(x)
Returns:
Tensor: The output tensor.
"""
def __init__(self):
super().__init__()
def forward(self, x: torch.Tensor) -> torch.Tensor:
return x * torch.sigmoid(x)
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