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