/**
 * Amazon Bedrock Provider Implementation
 * Uses the Converse API with support for Nova 2 web grounding
 *
 * Authentication options (in priority order):
 * 1. Bedrock API Key: AWS_BEARER_TOKEN_BEDROCK env var or apiKey option
 * 2. AWS Credentials: AWS_ACCESS_KEY_ID + AWS_SECRET_ACCESS_KEY
 * 3. AWS Profile: AWS_PROFILE or ~/.aws/credentials
 *
 * Bedrock API keys were introduced in July 2025 and provide simplified
 * authentication without requiring full IAM setup.
 */
import type { LLMProvider, ProviderName, Message, GenerateOptions, GenerateResponse } from './types.js';
/**
 * Amazon Bedrock LLM Provider
 *
 * Supports two authentication methods:
 * 1. Bedrock API Key (recommended for quick setup):
 *    - Set AWS_BEARER_TOKEN_BEDROCK env var, or
 *    - Pass apiKey in constructor options
 * 2. AWS Credentials (traditional):
 *    - AWS_ACCESS_KEY_ID + AWS_SECRET_ACCESS_KEY, or
 *    - AWS_PROFILE, or
 *    - ~/.aws/credentials file
 */
export declare class BedrockProvider implements LLMProvider {
    readonly name: ProviderName;
    private client;
    private sdk;
    private defaultModel;
    private region;
    private profile?;
    private apiKey?;
    private initPromise;
    constructor(options?: {
        /** AWS region (default: us-east-1) */
        region?: string;
        /** AWS profile name */
        profile?: string;
        /** Bedrock API key (alternative to AWS credentials) */
        apiKey?: string;
        /** Default model to use */
        defaultModel?: string;
    });
    /**
     * Initialize the Bedrock client (lazy loading)
     */
    private ensureInitialized;
    private initialize;
    generate(prompt: string, options?: GenerateOptions): Promise<GenerateResponse>;
    generateConversation(messages: Message[], options?: GenerateOptions): Promise<GenerateResponse>;
    supportsWebGrounding(): boolean;
    getGroundingModel(): string;
    testConnection(): Promise<boolean>;
    /**
     * Get the underlying Bedrock client for direct access
     */
    getClient(): Promise<{
        send: (command: unknown) => Promise<unknown>;
    }>;
}
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