interface ExtractReasoningOptions {
    /** @default `\n` */
    separator?: string;
    /** @default `false` */
    startWithReasoning?: boolean;
    /** @default `think` */
    tagName: string;
}
interface ExtractReasoningResult {
    reasoning?: string;
    text: string;
}
/** @deprecated use `(await generateText()).reasoningText` instead. */
declare const extractReasoning: (text: string, options?: ExtractReasoningOptions) => {
    reasoning: undefined;
    text: string;
} | {
    reasoning: string;
    text: string;
};

interface ExtractReasoningStreamResult {
    reasoningStream: ReadableStream<string>;
    textStream: ReadableStream<string>;
}
/** @deprecated use `streamText().reasoningTextStream` instead. */
declare const extractReasoningStream: (stream: ReadableStream<string>, options?: ExtractReasoningOptions) => ExtractReasoningStreamResult;

export { extractReasoning, extractReasoningStream };
export type { ExtractReasoningOptions, ExtractReasoningResult, ExtractReasoningStreamResult };