class_docstr: Feature GCN with coordinate GCN
class_docstr_tok: ["Feature","GCN","with","coordinate","GCN"]
code: def to_matrix(self, x):
      n, c, h, w = x.size()
      x = x.view(n, c, -1)
      return x
  
file_path: insightface/parsing/dml_csr/networks/modules/ddgcn.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import torch
  import torch.nn.functional
  import torch.nn
  from inplace_abn import InPlaceABNSync
label_desc: Use image node_id 2 for calling the DDualGCN obj's underlying member method code with example usage: obj.to_matrix(x) and returns: x