import type { SessionAuthContext } from "#channel/types.js";
import type { SessionStateMap, StepInput } from "#harness/types.js";
/**
 * Answering a request does not make the responder the turn's caller. When
 * `stepInput` only answers pending requests, returns it with each approval
 * answer carrying its responder, so approval policies and the approved call
 * see the responder while the turn keeps its caller. Returns `undefined` when
 * the input carries anything else, such as a message or a stale answer; its
 * sender becomes the caller.
 */
export declare function attributeAnswers(input: {
    readonly responder: SessionAuthContext | null;
    readonly state: SessionStateMap | undefined;
    readonly stepInput: StepInput | undefined;
}): StepInput | undefined;