import type { ChatCompletionParams, LLMProvider, ModelInfo, ProviderCapabilities, StreamChunk } from '@namzu/sdk';
import { type HttpConfig } from './types.js';
/**
 * What this DRIVER does, not what the remote endpoint could do:
 * tools pass through to the request body, but user-message image
 * `attachments` are not mapped into content parts — `supportsVision`
 * stays false until the message translation handles them.
 */
export declare const HTTP_CAPABILITIES: ProviderCapabilities;
export declare class HttpProvider implements LLMProvider {
    readonly id = "http";
    readonly name = "HTTP";
    readonly capabilities: ProviderCapabilities;
    private config;
    private dialect;
    constructor(config: HttpConfig);
    private getHeaders;
    private endpoint;
    private timeoutSignal;
    chatStream(params: ChatCompletionParams): AsyncIterable<StreamChunk>;
    private readStream;
    private streamOpenAI;
    private streamAnthropic;
    listModels(): Promise<ModelInfo[]>;
    healthCheck(): Promise<boolean>;
}
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