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						- export function merge(...sets) {
 -     if (sets.length > 1) {
 -         sets[0] = sets[0].slice(0, -1);
 -         const xl = sets.length - 1;
 -         for (let x = 1; x < xl; ++x) {
 -             sets[x] = sets[x].slice(1, -1);
 -         }
 -         sets[xl] = sets[xl].slice(1);
 -         return sets.join('');
 -     }
 -     else {
 -         return sets[0];
 -     }
 - }
 - export function subexp(str) {
 -     return "(?:" + str + ")";
 - }
 - export function typeOf(o) {
 -     return o === undefined ? "undefined" : (o === null ? "null" : Object.prototype.toString.call(o).split(" ").pop().split("]").shift().toLowerCase());
 - }
 - export function toUpperCase(str) {
 -     return str.toUpperCase();
 - }
 - export function toArray(obj) {
 -     return obj !== undefined && obj !== null ? (obj instanceof Array ? obj : (typeof obj.length !== "number" || obj.split || obj.setInterval || obj.call ? [obj] : Array.prototype.slice.call(obj))) : [];
 - }
 - export function assign(target, source) {
 -     const obj = target;
 -     if (source) {
 -         for (const key in source) {
 -             obj[key] = source[key];
 -         }
 -     }
 -     return obj;
 - }
 - //# sourceMappingURL=util.js.map
 
 
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