import type { UnderstandingKind, UserContextScope, UserUnderstanding } from './domain.js';
export declare function canonicalUnderstandingKey(kind: UnderstandingKind, statement: string): string;
export declare function isSameUserContextScope(left: UserContextScope, right: UserContextScope): boolean;
export declare function findDuplicateUnderstanding(understandings: UserUnderstanding[], input: {
    kind: UnderstandingKind;
    statement: string;
    canonicalKey: string;
    scope: UserContextScope;
    excludeId?: string;
}): UserUnderstanding | undefined;
export declare function findContradictoryUnderstanding(understandings: UserUnderstanding[], input: {
    kind: UnderstandingKind;
    statement: string;
    scope: UserContextScope;
}): UserUnderstanding | undefined;