/**
 * AWS Bedrock chat model supporting multiple providers (Anthropic, Meta, etc.).
 *
 * This class provides access to various models via AWS Bedrock,
 * supporting both text generation and structured output via tool calling.
 *
 * To use this model, you need to either:
 * 1. Set the following environment variables:
 *    - AWS_ACCESS_KEY_ID
 *    - AWS_SECRET_ACCESS_KEY
 *    - AWS_REGION
 * 2. Or provide AWS credentials through other standard methods
 * 3. Or use AWS SSO authentication
 */
import { z } from 'zod';
import { AbstractChatModel } from '../base';
import { BaseMessage } from '../messages';
import { ChatInvokeCompletion } from '../views';
export declare const AWSBedrockChatModelSchema: z.ZodObject<{
    model: z.ZodDefault<z.ZodString>;
    maxTokens: z.ZodDefault<z.ZodNumber>;
    temperature: z.ZodOptional<z.ZodNumber>;
    topP: z.ZodOptional<z.ZodNumber>;
    seed: z.ZodOptional<z.ZodNumber>;
    stopSequences: z.ZodOptional<z.ZodArray<z.ZodString, "many">>;
    awsAccessKeyId: z.ZodOptional<z.ZodString>;
    awsSecretAccessKey: z.ZodOptional<z.ZodString>;
    awsRegion: z.ZodOptional<z.ZodString>;
    requestParams: z.ZodOptional<z.ZodRecord<z.ZodString, z.ZodAny>>;
}, "strip", z.ZodTypeAny, {
    model: string;
    maxTokens: number;
    temperature?: number | undefined;
    seed?: number | undefined;
    topP?: number | undefined;
    stopSequences?: string[] | undefined;
    awsAccessKeyId?: string | undefined;
    awsSecretAccessKey?: string | undefined;
    awsRegion?: string | undefined;
    requestParams?: Record<string, any> | undefined;
}, {
    model?: string | undefined;
    temperature?: number | undefined;
    seed?: number | undefined;
    maxTokens?: number | undefined;
    topP?: number | undefined;
    stopSequences?: string[] | undefined;
    awsAccessKeyId?: string | undefined;
    awsSecretAccessKey?: string | undefined;
    awsRegion?: string | undefined;
    requestParams?: Record<string, any> | undefined;
}>;
type AWSBedrockConfig = z.infer<typeof AWSBedrockChatModelSchema>;
export declare class ChatAWSBedrock extends AbstractChatModel {
    private client;
    private config;
    constructor(config: Partial<AWSBedrockConfig> & {
        model?: string;
    });
    get provider(): string;
    private parseBase64Url;
    private downloadImage;
    private serializeImageContent;
    private serializeUserContent;
    private serializeAssistantContent;
    private serializeMessages;
    private getInferenceConfig;
    private formatToolsForRequest;
    private parseUsage;
    ainvoke<T = string>(messages: BaseMessage[], outputFormat?: z.ZodSchema<T>): Promise<ChatInvokeCompletion<T>>;
}
export {};
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