docstr: Return the font full name, e.g., 'Times-Roman'.
code: def get_fullname(self):
      """Return the font full name, e.g., 'Times-Roman'."""
      name = self._header.get(b"FullName")
      if name is None:  # use FontName as a substitute
          name = self._header[b"FontName"]
      return name
  
imports: from collections import namedtuple
  import logging
  import re
  from ._mathtext_data import uni2type1
label_desc: Use image node_id 14 for calling the AFM obj's underlying member method code with example usage: obj.get_fullname() and returns: name