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abort-controller-x-rxjs

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import { Observable } from 'rxjs'; export interface FirstValueFromConfig<T> { defaultValue: T; } export declare function firstValueFrom<T, D>(signal: AbortSignal, source: Observable<T>, config: FirstValueFromConfig<D>): Promise<T | D>; export declare function firstValueFrom<T>(signal: AbortSignal, source: Observable<T>): Promise<T>;