/**
 * Curator P3-6: shape of the sentinel chunk yielded by every provider's
 * stream-transformation generator when AI SDK throws
 * `NoOutputGeneratedError`. Built by `buildNoOutputSentinel` in
 * `src/lib/utils/noOutputSentinel.ts`.
 */
export type StreamNoOutputSentinel = {
    content: "";
    metadata: {
        noOutput: true;
        errorType: "NoOutputGeneratedError";
        finishReason: unknown;
        usage: unknown;
        providerError: string;
        modelResponseRaw: string | undefined;
    };
};
/**
 * Subset of AI SDK's `StreamTextResult` that the sentinel builder reads.
 * Both fields are Promises in production but typed loosely so callers
 * can pass either the Promise or a resolved value.
 */
export type StreamNoOutputSentinelResultLike = {
    finishReason?: Promise<unknown> | unknown;
    totalUsage?: Promise<unknown> | unknown;
};