export interface ContextSizingModelInfo {
    modelInfo: Record<string, unknown>;
    weightsBytes: number;
}
export interface ContextSizingHostProfile {
    totalMemBytes: number;
    headroomFraction?: number;
}
export interface ContextSizingRuntimeCaps {
    supportsKvQuantization?: boolean;
}
export interface ContextSizingDecision {
    numCtx: number;
    kvCacheType?: "q8_0";
    kvBytesPerToken: number;
    budgetBytes: number;
    estimatedBytes: number;
}
export declare function deriveLocalContextSizing(args: {
    host: ContextSizingHostProfile;
    model: ContextSizingModelInfo;
    runtime?: ContextSizingRuntimeCaps;
    rungs?: readonly number[];
}): ContextSizingDecision | undefined;
export declare function renderOllamaContextModelfile(args: {
    from: string;
    numCtx: number;
}): string;
export declare function sizedLocalModelRef(sourceRef: string, numCtx: number): string;
export declare function derivedLocalModelRef(sourceRef: string, tag: string): string;
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