code: def emit_UNKNOWN(self, IR_node):
      print(IR_node.IR_layer.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 34 for calling the OnnxEmitter obj's underlying member method code with example usage: obj.emit_UNKNOWN(IR_node) without return types