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- export default function symbolObservablePonyfill(root) {
- var result;
- var Symbol = root.Symbol;
- if (typeof Symbol === 'function') {
- if (Symbol.observable) {
- result = Symbol.observable;
- } else {
- result = Symbol('observable');
- Symbol.observable = result;
- }
- } else {
- result = '@@observable';
- }
- return result;
- };
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