import type { MemoryScope } from '../../contracts/memory';
declare const collapseWhitespace: (value: string) => string;
export declare const normalizeSpeakerLabel: typeof collapseWhitespace;
export declare const normalizeSpeakerAliasKey: (speakerLabel: string) => string;
export declare const createSpeakerKey: (platform: string, speakerId: string) => string;
/**
 * 注册表缺行时的兜底标签：日志与提取窗口都不携带原始身份，无法反查昵称，
 * 只能以键前缀合成；该用户下次直接对话时 reconcile 会升级为真昵称。
 */
export declare const createSyntheticSpeakerLabel: (speakerKey: string) => string;
/** 调用方未显式给键时按 scope 身份推导默认关联键，应用层注册与仓储落库共用。 */
export declare const resolveScopeSpeakerKeys: (scope: MemoryScope) => string[];
export declare const normalizeSpeakerKeys: (speakerKeys: readonly string[] | null | undefined) => string[];
export declare const resolveSpeakerKeysByLabels: (speakerLabels: readonly string[], speakers: readonly {
    speakerKey: string;
    speakerLabel: string;
    speakerAliases?: string[];
}[]) => string[];
export {};