/**
 * Returns a CSS custom property value with an optional suffix & prefix.
 * Prefix will only be added if there is a suffix.
 * If the value is undefined a fallback value will be returned to prevent children inheriting parent values.
 *
 * @param value
 * @param suffix
 * @param prefix
 */
export default function cssCustomPropertyValue(value: string | number | null | undefined, suffix?: string | undefined | null, prefix?: string | undefined | null): string | number;