code: def forward(self, G, out_key):
      h = {}
      for ntype in G.ntypes:
          n_id = self.node_dict[ntype]
          h[ntype] = F.gelu(
              self.adapt_ws[n_id](G.nodes[ntype].data["inp"])
          )
      for i in range(self.n_layers):
          h = self.gcs[i](G, h)
      return self.out(h[out_key])
  
imports: import dgl
  import math
  import torch
  import torch.nn
  import torch.nn.functional
  import dgl.function
  from dgl.nn.functional import edge_softmax
label_desc: Use image node_id 2 for calling the HGT obj's underlying member method code with example usage: obj.forward(G, out_key) and returns: self