Merge remote-tracking branch 'origin/dev' into dev

aijinhui

2024-03-26 493caef7413992d0215b9c2e2bcedd30471d89e7

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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>;