Zero-config-name ("Parameter "$1" must be an object that maps valid language codes to strings. e.g. { "en":"English", ... }")
Zero-config-show langs ("Parameter "$1" must be a non-empty list of valid language codes")
Zero-config-whitelisted langs ("Parameter "$1" must be a list of valid language codes. It must include all of languages listed in "showLangs", or be empty if all languages are allowed.")
Zero-config-langNameOverrides ("Parameter "$1" must be an object that maps valid language codes to strings. e.g. { "en":"English", ... }")
Zero-config-banner ("Parameter "$1" must be an object that maps valid language codes to strings. e.g. { "en":"English", ... }")