export declare const EMBEDDINGS_OFFER_PROMPT: string;
export declare const EMBEDDINGS_OFFER_DECLINE_HINT = "\u2139 No problem \u2014 search works now (lexical). Enable semantic anytime with `lyt model fetch`.";
export declare const EMBEDDINGS_OFFER_FETCHED = "\u2713 Semantic search enabled \u2014 the one-time local model is ready.";
export declare const EMBEDDINGS_OFFER_FETCH_FAILED: string;
export type EmbeddingsOfferOutcome = {
    offered: false;
    reason: "already-present" | "non-interactive" | "already-resolved";
} | {
    offered: true;
    accepted: false;
} | {
    offered: true;
    accepted: true;
    fetched: boolean;
};
export interface EmbeddingsOfferArgs {
    json?: boolean;
    stdinTTY?: boolean;
    stdoutTTY?: boolean;
    promptConfirm: (question: string) => Promise<boolean>;
    emit: (line: string) => void;
    modelCachePresentFn?: () => boolean;
    fetchModelFn?: () => Promise<boolean>;
    askedState?: () => "not-yet-asked" | "asked" | "declined" | "enabled";
    onSurfaced?: () => Promise<void> | void;
}
export declare function embeddingsOfferGate(args: EmbeddingsOfferArgs): Promise<EmbeddingsOfferOutcome>;
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