/**
 * Base Provider - Abstract base class for LLM providers
 */
import type { LLMProvider, ProviderConfig, GenerateTextOptions, GenerateTextResult, StreamTextOptions, StreamChunk, GenerateObjectOptions, GenerateObjectResult, Message, ToolDefinition } from './types';
export declare abstract class BaseProvider implements LLMProvider {
    abstract readonly providerId: string;
    readonly modelId: string;
    protected config: ProviderConfig;
    constructor(modelId: string, config?: ProviderConfig);
    abstract generateText(options: GenerateTextOptions): Promise<GenerateTextResult>;
    abstract streamText(options: StreamTextOptions): Promise<AsyncIterable<StreamChunk>>;
    abstract generateObject<T = any>(options: GenerateObjectOptions<T>): Promise<GenerateObjectResult<T>>;
    /**
     * Convert tool definitions to provider-specific format
     */
    protected abstract formatTools(tools: ToolDefinition[]): any[];
    /**
     * Convert messages to provider-specific format
     */
    protected abstract formatMessages(messages: Message[]): any[];
    /**
     * Retry logic with exponential backoff
     */
    protected withRetry<T>(fn: () => Promise<T>, maxRetries?: number): Promise<T>;
}