code: def __setitem__(self, glyphName, advance_sb_pair):
      self.metrics[glyphName] = tuple(advance_sb_pair)
  
file_path: catboost/contrib/python/fonttools/fontTools/ttLib/tables/_h_m_t_x.py
imports: from fontTools.misc.roundTools import otRound
  from fontTools import ttLib
  from fontTools.misc.textTools import safeEval
  from .None import DefaultTable
  import sys
  import struct
  import array
  import logging
label_desc: Use image node_id 7 for calling the table__h_m_t_x obj's underlying member method code with example usage: obj.__setitem__(glyphName, advance_sb_pair) without return types