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							- import { Observable } from './Observable';
 
- export declare type UnaryFunction<T, R> = (source: T) => R;
 
- export declare type OperatorFunction<T, R> = UnaryFunction<Observable<T>, Observable<R>>;
 
- export declare type FactoryOrValue<T> = T | (() => T);
 
- export declare type MonoTypeOperatorFunction<T> = OperatorFunction<T, T>;
 
 
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