/**
 * Utility class for generating UUID (Universally Unique Identifier) values.
 * Implements the singleton pattern and provides a static method for creating version 4 UUIDs.
 *
 * @example
 * ```typescript
 * const id = Uuid.create();
 * console.log(id); // e.g., "550e8400-e29b-41d4-a716-446655440000"
 * ```
 */
export declare class Uuid {
    /**
     * Private constructor to prevent instantiation.
     * @private
     */
    private constructor();
    /**
     * Generates a new version 4 UUID.
     *
     * @returns A string containing the generated UUID in the format "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
     *
     * @example
     * ```typescript
     * const id = Uuid.create();
     * console.log(id); // e.g., "550e8400-e29b-41d4-a716-446655440000"
     * ```
     */
    static create(): string;
}
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