/**
 * Mint an RFC 9562 UUIDv7 in canonical lowercase hyphenated form.
 *
 * The first 48 bits are a unix-millisecond timestamp, so ids sort by
 * creation time and stay index-friendly as database primary keys; the
 * remaining 74 bits are random.
 */
export declare function uuid7(): string;
/** Mint a fresh workspace id (UUIDv7). */
export declare function newWorkspaceId(): string;
/** Mint a fresh session id (UUIDv7). */
export declare function newSessionId(): string;
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