code: def build(self):
      self.input_layers = list()
      for layer in self.model.layers:
          self.layer_map[layer.name] = PaddleGraphNode(layer)
          self.layer_name_map[layer.name] = layer.name
  
          for input_layer in layer.inputs:
              self._make_connection(
                  input_layer.input_layer_name, layer.name
              )
  
      super(PaddleGraph, self).build()
  
file_path: MMdnn/mmdnn/conversion/paddle/paddle_graph.py
imports: import os
  import paddle.v2
  import paddle.trainer_config_helpers.layers
  from mmdnn.conversion.common.DataStructure.graph import GraphNode, Graph
label_desc: Use image node_id 2 for calling the PaddleGraph obj's underlying member method code with example usage: obj.build() without return types