import type { ChutesModel } from './types';
import { ModelRegistry } from './registry';
export interface ModelFetcherConfig {
    apiBaseUrl?: string;
    cacheTtlSeconds?: number;
    maxRetries?: number;
    retryDelayMs?: number;
}
export declare class ModelFetchError extends Error {
    readonly _code: string;
    readonly _statusCode?: number | undefined;
    readonly _originalError?: Error | undefined;
    constructor(message: string, _code: string, _statusCode?: number | undefined, _originalError?: Error | undefined);
}
export declare class ModelFetcher {
    private apiBaseUrl;
    private cache;
    private registry;
    private maxRetries;
    private retryDelayMs;
    private apiToken;
    constructor(config?: ModelFetcherConfig);
    setApiToken(token: string | null): void;
    getApiToken(): string | null;
    private getHeaders;
    private fetchWithRetry;
    private delay;
    fetchModels(): Promise<ChutesModel[]>;
    refreshModels(force?: boolean): Promise<ChutesModel[]>;
    getCachedModels(): ChutesModel[] | null;
    getRegistry(): ModelRegistry;
    isCacheValid(): boolean;
    isCacheStale(): boolean;
    clearCache(): void;
    getCacheAge(): number | null;
    getCacheRemainingTTL(): number | null;
}
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