/**
 * OpenAI-compatible provider adapter
 *
 * Handles OpenAI API format for request building, response parsing,
 * and message formatting. Used as the default provider.
 */
import type { ContentPart, PromptContent } from '../types.js';
import type { TooledPromptEmitter } from '../events.js';
import type { ProviderAdapter, ToolCallInfo, ToolResultInfo, ParsedResponse, BuildRequestParams, BuildRequestResult } from './types.js';
type OpenAIToolCall = {
    id: string;
    type: 'function';
    function: {
        name: string;
        arguments: string;
    };
};
export type OpenAIMessage = {
    role: 'system';
    content: PromptContent;
} | {
    role: 'user';
    content: PromptContent;
} | {
    role: 'assistant';
    content: string | null;
    tool_calls?: OpenAIToolCall[];
} | {
    role: 'tool';
    tool_call_id: string;
    content: string | ContentPart[];
};
export declare class OpenAIProvider implements ProviderAdapter<OpenAIMessage> {
    buildRequest(params: BuildRequestParams): BuildRequestResult;
    formatUserMessage(content: PromptContent, prependImages?: ContentPart[]): OpenAIMessage;
    formatAssistantMessage(content: string, toolCalls: ToolCallInfo[]): OpenAIMessage;
    formatToolResults(results: ToolResultInfo[]): OpenAIMessage[];
    parseResponse(response: Response, streaming: boolean, emitter: TooledPromptEmitter, chunkTimeoutMs?: number, signal?: AbortSignal): Promise<ParsedResponse>;
}
export {};
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