/**
 * @fileoverview 主题切换组合式函数。
 * 提供主题包的读取、设置和应用功能。
 */
export declare function useThemeSwitch(): {
    setTheme: (themeName: string) => void;
    currentTheme: import("vue").ComputedRef<import("../types/theme-types").ThemePackage>;
    availableThemes: import("vue").ComputedRef<import("../types/theme-types").ThemePackage[]>;
    initTheme: () => void;
    themeRegistry: import("../types/theme-types").ThemeRegistry;
    defaultThemeKey: string;
};
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