/**
 * LLM adapter factory with type guards
 */
import type { GetLLMOptions, LLMAdapter } from './types.js';
/**
 * Create an LLM adapter
 *
 * Uses lazy loading to only import the requested adapter.
 *
 * @example
 * ```ts
 * // WebLLM (default)
 * const llm = await getLLM();
 *
 * // With specific model
 * const llm = await getLLM({ defaultModel: 'Llama-3.2-1B-Instruct-q4f16_1-MLC' });
 * ```
 */
export declare function getLLM(options?: GetLLMOptions): Promise<LLMAdapter>;
/**
 * Auto-detect and create the best available LLM adapter
 *
 * Selection priority:
 * 1. WebLLM with WebGPU (best performance)
 * 2. Transformers.js as fallback
 *
 * @throws If no LLM adapter is available
 */
export declare function getLLMAuto(options?: Partial<Omit<GetLLMOptions, 'type'>>): Promise<LLMAdapter>;
/**
 * Check if a specific LLM backend is available
 */
export declare function isLLMAvailable(type: 'webllm' | 'transformers-llm'): boolean;
/**
 * Check if WebGPU is available for accelerated inference
 */
export declare function hasWebGPU(): boolean;
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