/**
 * Generates a class name for a given tag or component type.
 * @param tag - The tag name or component type to generate a class name for.
 * @param className - The base class name to combine with the generated class name.
 * @param props - The props object containing additional class names.
 * @returns The combined class name.
 */
export declare function cls(tag: keyof JSX.IntrinsicElements | React.ComponentType<any>, className: string, props: any): string;
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