import { log as writeLog } from "./logger";
import type { FallbackEntry } from "./model-requirements";
type LogImplementation = typeof writeLog;
export declare function _setModelResolutionLogImplementationForTesting(logImplementation: LogImplementation | undefined): void;
export type ModelResolutionRequest = {
    intent?: {
        uiSelectedModel?: string;
        userModel?: string;
        userFallbackModels?: string[];
        categoryDefaultModel?: string;
    };
    constraints: {
        availableModels: Set<string>;
        connectedProviders?: string[] | null;
    };
    policy?: {
        fallbackChain?: FallbackEntry[];
        systemDefaultModel?: string;
    };
};
export type ModelResolutionProvenance = "override" | "category-default" | "provider-fallback" | "system-default";
export type ModelResolutionResult = {
    model: string;
    provenance: ModelResolutionProvenance;
    variant?: string;
    attempted?: string[];
    reason?: string;
};
export declare function resolveModelPipeline(request: ModelResolutionRequest): ModelResolutionResult | undefined;
export {};