code: def get_updated_ranges(ranges, max_live=None):
      """Set LiveRange.defined = -1 if it is None
      Set LiveRange.used = max_live if it is None
      Set LiveRanee.size = 1 if it is None
      """
  
      def _get_max_live(ranges):
          max_live = max(x[1].used for x in ranges if x[1].used) + 1
          return max_live
  
      def _update_range(x, max_live, size):
          cx = x
          if x[1].defined is None:
              cx = (cx[0], cx[1]._replace(defined=-1))
          if x[1].used is None:
              cx = (cx[0], cx[1]._replace(used=max_live))
          if x[1].size is None:
              cx = (cx[0], cx[1]._replace(size=size))
          return cx
  
      if max_live is None:
          max_live = _get_max_live(ranges)
      ranges = [_update_range(x, max_live, 1) for x in ranges]
  
      return ranges
  
imports: import networkx
  import collections
  import time
  import copy
  from caffe2.python import workspace, core
  from caffe2.proto import caffe2_pb2
  import enum
  import logging
  import caffe2.python._import_c_extension
label_desc: Use image node_id 23 for calling a global function with example usage: get_updated_ranges(ranges, max_live) and returns: ranges, max_live, cx