code: def processSubr(self, index, subr):
      cs = self.callingStack[-1]
      hints = cs._hints
      subr_hints = subr._hints
  
      # Check from last_check, make sure we didn't have
      # any operators.
      if hints.status != 2:
          for i in range(hints.last_checked, index - 1):
              if isinstance(cs.program[i], str):
                  hints.status = 2
                  break
          hints.last_checked = index
  
      if hints.status != 2:
          if subr_hints.has_hint:
              hints.has_hint = True
  
              # Decide where to chop off from
              if subr_hints.status == 0:
                  hints.last_hint = index
              else:
                  hints.last_hint = index - 2  # Leave the subr call in
  
      elif subr_hints.status == 0:
          hints.deletions.append(index)
  
      hints.status = max(hints.status, subr_hints.status)
  
imports: from fontTools.misc import psCharStrings
  from fontTools import ttLib
  from fontTools.pens.basePen import NullPen
  from fontTools.misc.roundTools import otRound
  from fontTools.misc.loggingTools import deprecateFunction
  from fontTools.subset.util import _add_method, _uniq_sort
label_desc: Use image node_id 13 for calling the _DehintingT2Decompiler obj's underlying member method code with example usage: obj.processSubr(index, subr) without return types