/**
 * OpenAI provider as a declarative `WireFormatConfig`. Same canonical events
 * as `OpenAIProvider`; the per-message body is the loop body of
 * `parseOpenAIStream` split into a stateful step.
 */
import type { StopReason, Usage } from '@wrongstack/core/types';
interface StreamingArgBuffer {
    chunks: string[];
    length: number;
}
interface OpenAIStreamToolState {
    id?: string | undefined;
    name?: string | undefined;
    argBuf: StreamingArgBuffer;
    emittedStart: boolean;
    emittedChunkIndex: number;
}
export interface OpenAIStreamState {
    model: string;
    usage: Usage;
    stopReason: StopReason;
    started: boolean;
    textOpen: boolean;
    thinkingOpen: boolean;
    toolByIndex: Map<number, OpenAIStreamToolState>;
    finalEmitted: boolean;
    /** Set once `[DONE]` or a `finish_reason` is seen — a proper end-of-stream. */
    sawTerminal: boolean;
}
export declare const openaiWireFormat: import("../wire-format.js").WireFormatConfig<OpenAIStreamState>;
export {};
//# sourceMappingURL=openai.d.ts.map