gs appropriately based on the locale.  The local code is an <a href="https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes">ISO-639</a> language code plus, optionally, an underscore and an <a href="https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2">ISO-3166</a> country code: "en", "en_US", "fr_CA", etc.</p><span class="kdoc-tag"><h4 class="">Return</h4><p class="paragraph">this</p></span><h4 class="">Parameters</h4><div class="table"><div class="table-row" data-filterable-current=":couchbase-lite-ee/commonMa