import { type BaseProvider, type Message, type StreamOptions, type SendOptions, type UnifiedResponse, type ProviderCapability } from './types.js';
export interface OpenAIProviderConfig {
    id: string;
    apiKey: string;
    baseUrl: string;
    defaultModel: string;
    supportsThinking?: boolean;
}
export declare class OpenAIProvider implements BaseProvider {
    readonly id: string;
    readonly capabilities: ReadonlySet<ProviderCapability>;
    private apiKey;
    private baseUrl;
    private defaultModel;
    private supportsThinking;
    constructor(config: OpenAIProviderConfig);
    private processSSEStream;
    streamMessage(messages: Message[], options: StreamOptions): Promise<UnifiedResponse>;
    sendMessage(messages: Message[], options: SendOptions): Promise<UnifiedResponse>;
}
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