code: def humanize(iso639):
  	''' Converts ISO639 language identifier to the corresponding (human readable) language name. '''
  
  	for i, element in enumerate(LANGUAGES):
  		if element[1] == iso639 or element[2] == iso639:
  			return element[0]
  	return Nonf humanize(iso639):
  	''' Converts ISO639 language identifier to the corresponding (human readable) language name. '''
  
  	for i, element in enumerate(LANGUAGES):
  		if element[1] == iso639 or element[2] == iso639:
  			return element[0]
  	return None
docs: Converts ISO639 language identifier to the corresponding (human readable) language name.