code: def forward(self, x):
      outs = [x]
  
      idx = 0
      for curr_node in range(self.num_nodes - 1):
          edges_in = []
          for prev_node in range(curr_node + 1):  # n-1 prev nodes
              for op_idx in range(len(OPS.keys())):
                  if self.keep_mask[idx]:
                      edges_in.append(
                          self.options[idx](outs[prev_node])
                      )
                  idx += 1
          node_output = sum(edges_in)
          outs.append(node_output)
  
      return outs[-1]
  
imports: import torch.nn
label_desc: Use image node_id 2 for calling the SearchCell obj's underlying member method code with example usage: obj.forward(x) and returns: outs