While we're adding options to the "Community enhancement," lang should be considered to add for the benefit of those non-English speaking communities.
lang
str
Language code of the language to be searched in.
Accepted values: cs, da, de, en, es, fr, id, it, hu, nl, no, pl, pt, ro, sk, fi, sv, tr, vi, th, bg, ru, el, ja, ko, zh
Default: "en"