code: def com_google_fonts_check_name_familyname_first_char(ttFont):
    
    from fontbakery.utils import get_name_entry_strings
    failed = False
    for familyname in get_name_entry_strings(ttFont, NameID.FONT_FAMILY_NAME):
      digits = map(str, range(0, 10))
      if familyname[0] in digits:
        yield FAIL, ("Font family name '{}'"
                     " begins with a digit!").format(familyname)
        failed = True
    if failed is False:
      yield PASS, "Font family name first character is not a digit."
docs: Make sure family name does not begin with a digit.
  
       Font family names which start with a numeral are often not
       discoverable in Windows applications.