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编辑当前文件:/home/freeclou/.config/yarn/global/node_modules/rxjs/internal/operators/defaultIfEmpty.d.ts
import { OperatorFunction, MonoTypeOperatorFunction } from '../types'; export declare function defaultIfEmpty<T>(defaultValue?: T): MonoTypeOperatorFunction<T>; export declare function defaultIfEmpty<T, R>(defaultValue?: R): OperatorFunction<T, T | R>;