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node_modules/@angular/cdk/fesm2022/data-source.mjs

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+import { ConnectableObservable } from 'rxjs';
+
+class DataSource {
+}
+/** Checks whether an object is a data source. */
+function isDataSource(value) {
+    // Check if the value is a DataSource by observing if it has a connect function. Cannot
+    // be checked as an `instanceof DataSource` since people could create their own sources
+    // that match the interface, but don't extend DataSource. We also can't use `isObservable`
+    // here, because of some internal apps.
+    return value && typeof value.connect === 'function' && !(value instanceof ConnectableObservable);
+}
+
+export { DataSource, isDataSource };
+//# sourceMappingURL=data-source.mjs.map