/** Run `fn` inside the tool-call scope. @internal */
export declare function runInToolCallScope<T>(fn: () => T): T;
/** Whether the current async context is inside a tool call. @internal */
export declare function inToolCallScope(): boolean;
/** Run `fn` outside the tool-call scope (used to resume a deferred close). @internal */
export declare function runOutsideToolCallScope<T>(fn: () => T): T;