import type { ArkmeSessionCredentials, ArkmeSessionStore } from '../keychain-store.js';
export interface SessionTransitionObserver<Ticket = unknown> {
    prepare(previous: ArkmeSessionCredentials | undefined, next: ArkmeSessionCredentials | undefined): Promise<Ticket>;
    committed(ticket: Ticket): void;
    rolledBack(ticket: Ticket): void;
}
/** Adds principal-change observation without teaching the auth service about managed OpenAPI credentials. */
export declare class ObservedArkmeSessionStore<Ticket = unknown> implements ArkmeSessionStore {
    private readonly inner;
    private observer;
    private mutations;
    constructor(inner: ArkmeSessionStore);
    attach(observer: SessionTransitionObserver<Ticket>): void;
    read(): Promise<ArkmeSessionCredentials | undefined>;
    write(session: ArkmeSessionCredentials): Promise<void>;
    delete(): Promise<void>;
    private mutate;
}
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