/**
 * ID generation for opensip-tools.
 * Uses ULID for time-sortable, unique identifiers.
 */
/** Generate a ULID (time-sortable, 26 lowercase crockford base32 chars) */
export declare function generateId(prefix?: string): string;
/** Generate a prefixed ULID — e.g., generatePrefixedId('run') → 'RUN_01HXYZ...' */
export declare function generatePrefixedId(prefix: string): string;
/** Extract the timestamp from a ULID string. Returns null if invalid. */
export declare function extractTimestamp(id: string): Date | null;
/** Generate a standard UUID v4 (for cases where ULID is not appropriate) */
export declare function generateUUID(): string;
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