code: def StartIndexIncrement(self):
      self.start_index = self.start_index + 1
      if self.start_op_idx + 1 < self.net_op_nums[self.start_net_idx]:
          self.start_op_idx = self.start_op_idx + 1
      else:
          self.start_net_idx = self.start_net_idx + 1
          mace_check(
              self.start_net_idx < self.net_num, "invalid index."
          )
          self.start_op_idx = 0
  
imports: import argparse
  import copy
  import os
  import sh
  import yaml
  from py_proto import mace_pb2
  from transform.base_converter import ConverterUtil
  from transform.base_converter import MaceKeyword
  from transform.base_converter import MaceOp
  from transform.hexagon_converter import HexagonOp
  from utils.config_parser import DataFormat
  from utils.config_parser import ModelKeys
  from utils.util import mace_check
label_desc: Use image node_id 4 for calling the MultiNetDefInfo obj's underlying member method code with example usage: obj.StartIndexIncrement() without return types