class_docstr: MLP w/ GLU style gating
  See: https://arxiv.org/abs/1612.08083, https://arxiv.org/abs/2002.05202
code: def forward(self, x):
      x = self.fc1(x)
      x, gates = x.chunk(2, dim=-1)
      x = x * self.act(gates)
      x = self.drop(x)
      x = self.fc2(x)
      x = self.drop(x)
      return x
  
imports: import math
  from functools import partial
  from collections import namedtuple
  import torch
  import torch.nn
  import torch.nn.functional
  from torch.nn.modules.utils import _pair
  import hydra
  from einops import reduce, rearrange
label_desc: Use image node_id 3 for calling the GluMlp obj's underlying member method code with example usage: obj.forward(x) and returns: x