declare namespace Ext {
    export interface supportsConfig {
    }

    export class supports   {
        public AsyncFocusEvents?: boolean;
        public Audio?: boolean;
        public AudioTag?: boolean;
        public BoundingClientRect?: boolean;
        public Canvas?: boolean;
        public ChildContentClearedWhenSettingInnerHTML?: boolean;
        public ClassList?: boolean;
        public CloneNodeCopiesExpando?: boolean;
        public ComputedStyle?: boolean;
        public CreateContextualFragment?: boolean;
        public CSS3BorderRadius?: boolean;
        public CSS3BoxShadow?: boolean;
        public Css3DTransforms?: boolean;
        public CSS3LinearGradient?: boolean;
        public CSSPointerEvents?: boolean;
        public DeviceMotion?: boolean;
        public Direct2DBug?: boolean;
        public DisplayChangeInputSelectionBug?: any;
        public DisplayChangeTextAreaSelectionBug?: any;
        public EmulatedMouseOver?: boolean;
        public Float?: boolean;
        public Geolocation?: boolean;
        public GeoLocation?: boolean;
        public GetPositionPercentage?: boolean;
        public Hashchange?: boolean;
        public HighContrastMode?: boolean;
        public History?: boolean;
        public LocalStorage?: boolean;
        public matchesSelector?: string;
        public MouseEnterLeave?: boolean;
        public MouseWheel?: boolean;
        public NumericInputPlaceHolder?: boolean;
        public Opacity?: boolean;
        public Orientation?: boolean;
        public OrientationChange?: boolean;
        public Placeholder?: boolean;
        public Range?: boolean;
        public RightMargin?: boolean;
        public RotatedBoundingClientRect?: boolean;
        public ScrollWidthInlinePaddingBug?: boolean;
        public Selectors2?: boolean;
        public SpecialKeyDownRepeat?: boolean;
        public Svg?: boolean;
        public TextAreaMaxLength?: boolean;
        public Touch?: boolean;
        public TouchEvents?: boolean;
        public Transitions?: boolean;
        public TransparentColor?: boolean;
        public Video?: boolean;
        public ViewportUnits?: boolean;
        public Vml?: boolean;
        public XHR2?: boolean;
        public XHRUploadProgress?: boolean;
    }
}