docs: def add_translation(sender):
  	"""
  	Adds the actions to a class.
  	"""
  	# 1. Execute _save_translations when saving an object
  	signals.post_save.connect(_save_translations, sender=sender)
  	# 2. Adds get_fieldtranslations to class. Remember that this method get all the translations.
  	sender.add_to_class("get_fieldtranslations", _get_fieldtranslations)
  	# 3. Adss load_translations. Remember that this method included all the translations as dynamic attributes.
  	sender.add_to_class("load_translations", _load_translations)
  	# 4. Adds _set_dict_translations. This methods allows us setting all the translated fields form a dict.
  	# Very useful when dealing with ModelForms.
  	sender.add_to_class("set_translation_fields", _set_dict_translations)
  	# 5. This methods returns one translated attribute in Django.
  	# Avoid using _ and use get_trans_attr because Django maketranslations parser is fooled believing that everything
  	# inside _ methods is translatable.
  	sender.add_to_class("_", _get_translated_field)
  	sender.add_to_class("get_trans_attr", _get_translated_field)
  	sender.add_to_class("_t", _get_translated_field)