import type { ProviderId, ReasoningPreference } from "../types.js";
export interface SessionModelBinding {
    readonly provider?: ProviderId | undefined;
    readonly model?: string | undefined;
    readonly thinking?: ReasoningPreference | undefined;
}
export interface ResolvedSessionModel {
    readonly provider: ProviderId;
    readonly model: string;
}
export declare function getSessionModelPath(sessionId: string): string;
export declare function loadSessionModelBinding(sessionId: string | undefined): Promise<SessionModelBinding | undefined>;
export declare function globalModelDefaults(): ResolvedSessionModel;
export declare function lastUsedSessionModel(exclude?: string | undefined): Promise<SessionModelBinding | undefined>;
export declare function loadModelForSession(sessionId: string | undefined): Promise<ResolvedSessionModel>;
export interface SessionModelSeed {
    readonly provider?: ProviderId | undefined;
    readonly model?: string | undefined;
    readonly modelExplicit?: boolean | undefined;
    readonly inheritLastUsed?: boolean | undefined;
    readonly freeCatalogFallback?: boolean | undefined;
}
export declare function seedSessionModel(sessionId: string | undefined, fallback: SessionModelSeed): Promise<{
    provider: ProviderId | undefined;
    model: string | undefined;
}>;
export declare function saveSessionModel(sessionId: string, binding: SessionModelBinding): Promise<void>;
export declare function clearSessionModel(sessionId: string): Promise<void>;
export declare function releaseSessionModel(sessionId: string): Promise<void>;
export declare function resetSessionModelCache(): void;