/**
 * @title addCSSVariable
 * @description 给dom节点添加 变量
 * @param {HTMLElement} dom
 * @param {string} key
 * @param {string} value
 * @returns {boolean}
 */
export declare function addCSSVariable(dom: HTMLElement, key: string, value: string): boolean;
/**
 * @title addCSSVariable
 * @description 给dom节点添加 变量
 * @param {HTMLElement} dom
 * @param {ObjectType<string>} record
 * @returns {boolean}
 */
export declare function addCSSVariables(dom: HTMLElement, record: Record<string, string>): boolean;
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