code: def forward(self, x, tags):
      x = self.lin1(x, tags)
      if self.act:
          x = swish(x)
      x = self.lin2(x, tags)
      if self.act:
          x = swish(x)
      return x
  
imports: from torch_cluster import radius_graph
  from torch_geometric.nn import GraphConv, GraphNorm
  from torch_geometric.nn import inits
  from torch_scatter import scatter, scatter_min
  from torch.nn import Embedding
  import torch
  from torch import nn
  from torch import Tensor
  import torch.nn.functional
  import math
  from math import sqrt
label_desc: Use image node_id 3 for calling the TwoLayerLinear obj's underlying member method code with example usage: obj.forward(x, tags) and returns: x