import type { ConversationKind, OfficeAddress } from "../types.js";
import type { ResolveSessionKeyOptions } from "./types.js";
export declare function assertSessionConversationId(conversationId: string): string;
export declare function assertSessionSuffix(suffix: string): string;
export declare function makeThreadSessionKey(conversationId: string, suffix: string): string;
export declare function assertSessionKeyBelongsToConversation(sessionKey: string, conversationId: string): string;
export declare function deriveSessionKey(event: {
    address: OfficeAddress;
    sessionKey?: string;
    thread_ts?: string;
    ts: string;
}): string;
export declare function isThreadSessionKey(sessionKey: string): boolean;
export declare function conversationIdOf(sessionKey: string): string;
export declare function threadSuffixOf(sessionKey: string): string | null;
export declare function resolveChatSessionKey(options: ResolveSessionKeyOptions): string;
export declare function inferConversationKind(platform: string, conversationId: string): ConversationKind;
export declare function extractSessionSuffix(sessionKey: string): string;
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