declare const PARENT_CONTEXT: unique symbol;
type ParentContext = {
    [PARENT_CONTEXT]: true;
    value: Record<string, unknown>;
    identity: unknown;
};
export type ValueIdentity = {
    equality: (value: unknown) => unknown;
    exact: (value: unknown) => unknown;
    serializeEquality: (value: unknown) => string;
};
export declare function createValueIdentity(): ValueIdentity;
/** Preserve the value relation used by equality predicates in keyed state. */
export declare function getEqualityValueIdentity(value: unknown): unknown;
/** Keep compiler identity outside the namespace that holds user aliases. */
export declare function createParentContext(value: Record<string, unknown>, identity: unknown): ParentContext;
export declare function getParentContextValue(context: unknown): Record<string, unknown> | undefined;
/**
 * The envelope is structural D2 state, but its value keeps the user's alias
 * namespace separate from compiler identity. A later insert or retract can
 * therefore rebuild the same route without reserving a user-visible key.
 */
export declare function getParentContextIdentity(context: unknown): unknown;
export {};