code: def emit_Add(self, IR_node):
      input_layers = ", ".join(
          (
              "'"
              + self.IR_graph.get_parent(
                  IR_node.name, [num]
              ).real_variable_name
          )
          + "'"
          for num in range(0, len(IR_node.in_edges))
      )
      self.add_body(
          1,
          "{:15} = helper.make_node('Add', inputs=[{}], outputs=['{}'], name='{}')".format(
              IR_node.variable_name,
              input_layers,
              IR_node.variable_name,
              IR_node.variable_name,
          ),
      )
      self.nodes.append(IR_node.variable_name)
  
imports: from mmdnn.conversion.common.DataStructure.emitter import Emitter
  from mmdnn.conversion.common.IR.IR_graph import IRGraph
  import os.path
  import mmdnn.conversion.common.IR.graph_pb2
  import numpy
  import sys
label_desc: Use image node_id 12 for calling the OnnxEmitter obj's underlying member method code with example usage: obj.emit_Add(IR_node) without return types