import { BaseLlm } from './BaseLlm';
/**
 * Type for LLM constructor classes that have the supportedModels static method
 */
type LlmConstructor = {
    new (model: string): BaseLlm;
    supportedModels(): string[];
};
/**
 * Registry for LLMs.
 */
export declare class LlmRegistry {
    /**
     * Creates a new LLM instance.
     * @param model The model name.
     * @returns The LLM instance.
     */
    static newLlm(model: string): BaseLlm;
    /**
     * Registers a new LLM class.
     * @param modelNameRegex The regex that matches the model name.
     * @param llmClass The constructor class that implements the model.
     */
    private static _register;
    /**
     * Registers a new LLM class.
     * @param llmClass The constructor class that implements the model.
     */
    static register(llmClass: LlmConstructor): void;
    /**
     * Simple LRU cache implementation
     */
    private static resolveCache;
    private static readonly MAX_CACHE_SIZE;
    /**
     * Resolves the model to a BaseLlm constructor.
     * @param model The model name.
     * @returns The BaseLlm constructor.
     * @throws Error if the model is not found.
     */
    static resolve(model: string): LlmConstructor;
}
export {};