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node_modules/rxjs/_esm5/internal/util/subscribeToObservable.js

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+/** PURE_IMPORTS_START _symbol_observable PURE_IMPORTS_END */
+import { observable as Symbol_observable } from '../symbol/observable';
+export var subscribeToObservable = function (obj) {
+    return function (subscriber) {
+        var obs = obj[Symbol_observable]();
+        if (typeof obs.subscribe !== 'function') {
+            throw new TypeError('Provided object does not correctly implement Symbol.observable');
+        }
+        else {
+            return obs.subscribe(subscriber);
+        }
+    };
+};
+//# sourceMappingURL=subscribeToObservable.js.map