/**
 * The single Model constructor. Resolution runs through the compat engine
 * (`compat/resolve`): identity classification, cascade-rule axes, host
 * detection, and spec overrides materialize exactly once per spec.
 *
 * Request handlers read fields — they never detect, parse ids, or allocate
 * compat per request.
 */
import { type Api, type Model, type ModelCost, type ModelSpec } from "./types.js";
/**
 * Applies reviewed catalog-data value corrections (`cost-patch`,
 * `cache-read-at-input-rate`, `cache-write-rate`, `limits-patch`,
 * `long-context-cost`, `context-window-floor`, `input-modalities`) onto an
 * upstream-sourced spec. Applied by
 * `buildModel` to every upstream-sourced spec; user-authored overrides are
 * recomposed after building by the override applicators, so explicit user
 * limits and pricing still win.
 */
export declare function applyCatalogCorrections(model: Pick<ModelSpec<Api>, "cost" | "contextWindow" | "maxTokens" | "input">, catalog: Record<string, unknown>): void;
/**
 * Build a discovered model using the backend's catalog-selected request API.
 * The credential-bearing provider id remains unchanged while `providerType`
 * persists the backend policy identity across cache and config round trips.
 */
export declare function buildDiscoveredModel(spec: ModelSpec<Api>, providerType: string): Model<Api>;
/**
 * The first instant after `now` at which {@link buildModel} could select a
 * different dated price card for a spec carrying `cost`: the next
 * `effectiveFrom` of the spec's own rate schedule or of any dated card in the
 * compiled rules. A build of an unchanged spec made at or after `now` is
 * identical to a fresh one until then. `Infinity` when no change is pending.
 */
export declare function nextBuildPriceChange(cost: ModelCost, now: number): number;
/**
 * Build one model from an authored spec. Bundled models are prebuilt by the
 * generator and decoded by `models.ts`, so this only runs for discovered,
 * custom, and override specs.
 */
export declare function buildModel<TApi extends Api>(spec: ModelSpec<TApi>): Model<TApi>;