| 1234567891011121314151617181920 | import { isFunction } from './isFunction';export function hasLift(source) {    return isFunction(source === null || source === void 0 ? void 0 : source.lift);}export function operate(init) {    return (source) => {        if (hasLift(source)) {            return source.lift(function (liftedSource) {                try {                    return init(liftedSource, this);                }                catch (err) {                    this.error(err);                }            });        }        throw new TypeError('Unable to lift unknown Observable type');    };}//# sourceMappingURL=lift.js.map
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