/** The key of the configuration. e.g. _query */
    String QUERY_JSON_DEFAULT_PREFERENCE = "query.json.default.preference";

    /** The key of the configuration. e.g. _query */
    String QUERY_GSA_DEFAULT_PREFERENCE = "query.gsa.default.preference";

    /** The key of the configuration. e.g. ar=ar<br>
     * bg=bg<br>
     * bn=bn<br>
     * ca=ca<br>

query.collapse.max.concurrent.group.results=4
query.collapse.inner.hits.name=similar_docs
query.collapse.inner.hits.size=0
query.collapse.inner.hits.sorts=
query.default.languages=
query.json.default.preference=_query
query.gsa.default.preference=_query
query.language.mapping=\
ar=ar\n\
bg=bg\n\
bn=bn\n\
ca=ca\n\
ckb-iq=ckb-iq\n\
ckb_IQ=ckb-iq\n\
cs=cs\n\
da=da\n\
de=de\n\
el=el\n\
en=en\n\