is_rtl
Check if the given language is a rtl or ltr language.
language
Return the language the resource (or translated text) will be displayed in.
language_dir
Return rtl or ltr depening on the direction of the language.
language_sort
Sort a list of language codes or map with languages on their name. Return a list of {Code, LanguageProps} pairs.
trans_filter_filled
Filters all empty translations from a property.

Survey Filters Tuples