code: def send_func(self, src_feat, dst_feat, edge_feat):
      return {"h": F.relu(src_feat["x"] + edge_feat["e"])}
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  import pgl
  import pgl.nn
  import pgl.nn.functional
  from mol_encoder import AtomEncoder, BondEncoder
label_desc: Use image node_id 2 for calling the GINConv obj's underlying member method code with example usage: obj.send_func(src_feat, dst_feat, edge_feat) and returns: dict