docs: function toFunctions(cldr, pluralize, opts, paramsObj) {
    return Object.keys(cldr).reduce(function(acc, key) {
      if (key.indexOf('_') === 0) return acc;
      var value = cldr[key];
      if (typeof value !== 'string') return acc;
      var t = acc[key] = interpolate(value, opts);
      merge(paramsObj, t.params);
      return acc;
    }, {});
  }