import type { SessionAuthContext } from "#channel/types.js";
/**
 * Runs `fn` with `caller` as the session's current caller. Writes still reach
 * the outer context; only reads of the caller change, so work running beside
 * `fn` in the same step keeps the outer caller.
 */
export declare function runAsCaller<T>(caller: SessionAuthContext, fn: () => T): T;