import type { ArkmeConversationMemberItem, ArkmeConversationMemberFacts, ArkmeConversationMemberJoinEvent, ArkmeConversationMemberUpdate } from './types.js';
/** Only for the members/page and members/by-user-ids read contracts: 2001/2002 mean unreadable membership/session. */
export declare function invalidatesMemberSnapshot(error: unknown): boolean;
export declare function mergeMemberFacts(previous: ArkmeConversationMemberItem | undefined, facts: ArkmeConversationMemberFacts): ArkmeConversationMemberItem;
export declare function mergeMemberPresentation(previous: ArkmeConversationMemberItem | undefined, incoming: ArkmeConversationMemberItem, profileUnavailable: boolean): ArkmeConversationMemberItem;
/** Membership creates entities; details can only enrich or explicitly remove known entities. */
export declare function applyMemberUpdate(members: Map<string, ArkmeConversationMemberItem>, update: ArkmeConversationMemberUpdate): boolean;
export declare function cachedMemberItem(value: unknown): ArkmeConversationMemberItem | undefined;
export declare function validateMemberUpdate(update: ArkmeConversationMemberUpdate): void;
export declare function mergeMemberJoinEvents(previous: readonly ArkmeConversationMemberJoinEvent[], incoming: readonly ArkmeConversationMemberJoinEvent[]): ArkmeConversationMemberJoinEvent[];
//# sourceMappingURL=member-directory.d.ts.map