Method __init__

(self,
                 embed_dims=256,
                 feedforward_channels=1024,
                 num_fcs=2,
                 act_cfg=dict(type='ReLU', inplace=True),
                 ffn_drop=0.,
                 dropout_layer=None,
                 add_identity=True,
                 init_cfg=None,
                 with_cp=False,
                 **kwargs)