import { type ProviderId } from './providers/index.js';
import type { ModelStrategy, RequiredTier } from '../schemas/app.js';
export type StrategyShape = {
    readonly modelStrategy: ModelStrategy;
    readonly requiredTiers: readonly RequiredTier[] | null;
    readonly allowedModels: readonly string[] | null;
};
declare const providersForTiers: (tiers: readonly RequiredTier[]) => readonly ProviderId[];
declare const providersForModelSlugs: (slugs: readonly string[]) => readonly ProviderId[];
export declare const derivedProviders: (s: StrategyShape) => readonly ProviderId[] | null;
export declare const strategyAllowsProvider: (s: StrategyShape, providerId: ProviderId) => boolean;
export { providersForTiers, providersForModelSlugs };
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