code: def in_feats(self):
      return self.g.ndata["feat"].shape[1]
  
imports: import argparse
  import textwrap
  import tensorflow
  import tensorflow_addons
  from dgl.data import CiteseerGraphDataset, CoraGraphDataset, PubmedGraphDataset
  from dgl.nn.tensorflow.conv import SGConv
label_desc: Use image node_id 3 for calling the SGC obj's underlying member method code with example usage: obj.in_feats() and returns: self