export interface AuthoritativeBaseVersionResolverOptions {
    apiUrl: string;
    hqRoot: string;
    scopeUid: string;
}
export declare class AuthoritativeBaseVersionUnavailableError extends Error {
    constructor(message?: string);
}
/** Returns an exact VersionId, or null only for a snapshot-proven absent path. */
export declare function resolveAuthoritativeBaseVersion(options: AuthoritativeBaseVersionResolverOptions, canonicalPath: string): string | null;
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