Method __init__

Args: dim_in (int): the channel dimension of the input. fusion_conv_channel_ratio (int): channel ratio for the convolution used to fuse from Fast pathway to Slow pathway. fusion_kernel (int): kernel size of the convolution used to fuse

(
        self,
        dim_in,
        fusion_conv_channel_ratio,
        fusion_kernel,
        alpha,
        eps=1e-5,
        bn_mmt=0.1,
        inplace_relu=True,
        norm_module=nn.BatchNorm3d,
    )