import { Middleware, LLMRequestPayload, LLMResponsePayload, HookContext, IPromptManager, IContextManager, IModelRegistry, ChatCompletionRequest } from './types';
export interface LLMClientConfig {
    modelRegistry: IModelRegistry;
    promptManager?: IPromptManager;
    contextManager?: IContextManager;
}
export declare class LLMClient {
    private modelRegistry;
    private providerCache;
    promptManager?: IPromptManager;
    contextManager?: IContextManager;
    private middleware;
    private retryHandler;
    private logger;
    constructor(config: LLMClientConfig);
    use(middleware: Middleware<HookContext>): void;
    private getOrCreateProvider;
    chat(payload: LLMRequestPayload | ChatCompletionRequest): Promise<LLMResponsePayload>;
    text(payload: LLMRequestPayload): Promise<LLMResponsePayload>;
    listAvailableModels(): string[];
    /**
     * Check if error is an HTTP error
     */
    private isHttpError;
    /**
     * Extract status code from error
     */
    private getStatusCode;
}
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