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Unit test of

_get_translators() : test missing
deobfuscate_email() : test missing
get_inactive_translators() : test missing
get_login_urls() : test missing
get_translation_key() : test missing
get_translators_filename() : test missing
hash_translation_key() : test missing
is_valid_translation_key() : test missing
is_valid_translator() : test missing
obfuscate_email() : test missing
show_translators() : test missing
update_translator() : test missing