Interface CSSImportRule

interface CSSImportRule {
    CHARSET_RULE: 2;
    COUNTER_STYLE_RULE: 11;
    cssText: string;
    FONT_FACE_RULE: 5;
    FONT_FEATURE_VALUES_RULE: 14;
    href: string;
    IMPORT_RULE: 3;
    KEYFRAME_RULE: 8;
    KEYFRAMES_RULE: 7;
    layerName: string;
    media: MediaList;
    MEDIA_RULE: 4;
    NAMESPACE_RULE: 10;
    PAGE_RULE: 6;
    parentRule: CSSRule;
    parentStyleSheet: CSSStyleSheet;
    STYLE_RULE: 1;
    styleSheet: CSSStyleSheet;
    SUPPORTS_RULE: 12;
    supportsText: string;
    type: number;
}