/**
 * kosha-discovery — LiteLLM community data enrichment.
 *
 * Fetches the community-maintained litellm model catalogue from GitHub
 * and uses it to fill in pricing, context window sizes, and capability
 * flags on already-discovered {@link ModelCard} objects.
 * @module
 */
import type { Enricher, ModelCard } from "../types.js";
/**
 * Enriches ModelCard data with pricing, context-window sizes, and capability
 * flags sourced from the litellm community-maintained model catalogue.
 *
 * @see https://github.com/BerriAI/litellm
 */
export declare class LiteLLMEnricher implements Enricher {
    private data;
    /** Fetch and cache the litellm pricing JSON via the shared catalog loader. */
    load(): Promise<void>;
    /**
     * Enrich an array of ModelCards with litellm data.
     *
     * - Only fills in **missing** fields — never overwrites API-sourced data.
     * - Returns new ModelCard objects (immutable pattern).
     * - Models not found in litellm are returned unchanged.
     */
    enrich(models: ModelCard[]): Promise<ModelCard[]>;
    private enrichOne;
    /**
     * Best-effort lifecycle status from a deprecation-date string.
     *
     * Returns `"retired"` when the date has already passed,
     * `"deprecated"` when one is set but still in the future,
     * and `"active"` when no date is present.
     */
    private inferStatus;
    /**
     * Look up a model in the litellm pricing catalogue using a tiered set of
     * key strategies. Later strategies use `originProvider` to handle models
     * whose IDs are namespaced differently by the serving layer (e.g. a Bedrock
     * model whose `id` is `"anthropic.claude-opus-4-8-…"` but whose
     * `originProvider` is `"anthropic"`).
     *
     * Lookup order:
     *   1. Exact `id` match
     *   2. `{provider}/{id}` format
     *   3. `{originProvider}/{id}` (when originProvider differs from provider)
     *   4. `{originProvider}/{normalizedId}` — strips prefix/date suffixes
     *   5. Lowercase exact `id` match
     *   6. Lowercase `{provider}/{id}`
     *   7. Lowercase `{originProvider}/{normalizedId}`
     */
    private lookupModel;
    /** Convert litellm per-token costs to per-million pricing. */
    private extractPricing;
    /**
     * Return the first defined finite number from a list of optional values.
     * This allows tolerant support for field-name variants in upstream data.
     */
    private firstFinite;
    /** Map litellm mode strings to our ModelMode type. */
    private mapMode;
}
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