import switchMap

Author: sllethe

src/lib/list/selection-list.ts

@@ -31,6 +31,7 @@ import {SPACE} from '../core/keyboard/keycodes';
 import {Focusable} from '../core/a11y/focus-key-manager';
 import {MdListOption} from './list-option';
 import {CanDisable, mixinDisabled} from '../core/common-behaviors/disabled';
+import {RxChain, switchMap, first, filter} from '../core/rxjs/index';
 
 export class MdSelectionListBase {}
 export const _MdSelectionListMixinBase = mixinDisabled(MdSelectionListBase);