import type { L0Event, L0Adapter } from "../types/l0";
import type { TextStreamPart, ToolSet } from "ai";
export type VercelStreamChunk = TextStreamPart<ToolSet>;
export interface VercelStreamTextResult {
    textStream: AsyncIterable<string>;
    fullStream: ReadableStream<VercelStreamChunk>;
    text: Promise<string>;
    toolCalls: Promise<unknown>;
    usage: Promise<unknown>;
    finishReason: Promise<unknown>;
}
export interface VercelAIAdapterOptions {
    includeUsage?: boolean;
    includeToolCalls?: boolean;
}
export declare function wrapVercelAIStream(streamResult: VercelStreamTextResult, options?: VercelAIAdapterOptions): AsyncGenerator<L0Event>;
export declare function isVercelAIStream(obj: unknown): obj is VercelStreamTextResult;
export declare const vercelAIAdapter: L0Adapter<VercelStreamTextResult, VercelAIAdapterOptions>;
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