import { type Model } from '@earendil-works/pi-ai';
/** Resolve a pi-ai catalog Model for an agim (providerType, modelId) pair. */
export declare function findCatalogModel(providerType: string | undefined, modelId: string): Model<string> | null;
export interface ModelMeta {
    contextWindow: number;
    maxTokens: number;
}
/** contextWindow / maxTokens for an agim backend, or null when uncatalogued. */
export declare function lookupModelMeta(providerType: string | undefined, modelId: string): ModelMeta | null;
/** Estimate cost (USD) from token counts via the catalog, or null when the
 *  model isn't catalogued. cacheRead / cacheWrite default to 0. */
export declare function estimateCostUsd(providerType: string | undefined, modelId: string, tokens: {
    input: number;
    output: number;
    cacheRead?: number;
    cacheWrite?: number;
}): number | null;
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