docstr: Get the name of the character, i.e., ';' is 'semicolon'.
code: def get_name_char(self, c, isord=False):
      """Get the name of the character, i.e., ';' is 'semicolon'."""
      if not isord:
          c = ord(c)
      return self._metrics[c].name
  
imports: from collections import namedtuple
  import logging
  import re
  from ._mathtext_data import uni2type1
label_desc: Use image node_id 6 for calling the AFM obj's underlying member method code with example usage: obj.get_name_char(c, isord) and returns: self