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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = onlyOnce;
function onlyOnce(fn) {
return function () {
if (fn === null) throw new Error("Callback was already called.");
var callFn = fn;
fn = null;
callFn.apply(this, arguments);
};
}
module.exports = exports["default"];