import type { ChatCompletionChunk } from "openai/resources/chat/completions";
import { type StreamCompletionMetadata } from "@use-crux/core/adapter";
import type { OpenAIChatRequest } from "./types";
/** Extract a text delta from an OpenAI chat-completion stream chunk. */
export declare function openAITextDelta(chunk: unknown): string | undefined;
/** Compile-time alias used by native chat stream bindings. */
export type OpenAIChatStreamChunk = ChatCompletionChunk;
/** Stream wrapper that normalizes mid-stream provider iteration errors. */
export declare class OpenAIChatStream implements AsyncIterable<ChatCompletionChunk> {
    #private;
    constructor(raw: AsyncIterable<ChatCompletionChunk>);
    [Symbol.asyncIterator](): AsyncIterator<ChatCompletionChunk>;
}
/** Wrap a raw OpenAI chat stream so mid-stream errors are provider-normalized. */
export declare function createOpenAIStreamCapture(raw: AsyncIterable<ChatCompletionChunk>): OpenAIChatStream;
/** Reconstruct exact completion facts from consumed OpenAI chat chunks. */
export declare function openAIStreamCompletion(chunks: readonly unknown[], request?: OpenAIChatRequest): Promise<StreamCompletionMetadata | undefined>;