import { type ChildProcess } from "node:child_process";
export declare const DEFAULT_EMBEDDINGS_PROBE_TIMEOUT_MS = 15000;
export declare function embeddingsProbeTimeoutMs(): number;
export interface NativeProbeResult {
    available: boolean;
    reason: string;
    transient?: boolean;
}
export interface ProbeOptions {
    timeoutMs?: number;
    signal?: AbortSignal;
    spawnChild?: (source: string, env: NodeJS.ProcessEnv) => ChildProcess;
    fastembedPath?: string | null;
}
export declare function probeNativeEmbeddings(opts?: ProbeOptions): Promise<NativeProbeResult>;
export declare function __resetNativeProbeCache(): void;
export declare function __setForcedProbe(result: NativeProbeResult | null): void;
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