docs: def trans_attr(attr, lang):
  	"""
  	Returns the name of the translated attribute of the object <attribute>_<lang_iso_code>.
  	For example: name_es (name attribute in Spanish)
  	@param attr Attribute whose name will form the name translated attribute.
  	@param lang ISO Language code that will be the suffix of the translated attribute.
  	@return: string with the name of the translated attribute.
  	"""
  	lang = lang.replace("-","_").lower()
  	return "{0}_{1}".format(attr,lang)