import type { WidgetFrameResolvedBoxShadowLayer } from "@getuserfeedback/protocol/host";
export type NativeWidgetFrameBoxShadowValue = {
    blurRadius: number;
    color: string;
    inset: boolean;
    offsetX: number;
    offsetY: number;
    spreadDistance: number;
};
type NativeWidgetFrameLegacyShadowStyle = {
    elevation: number;
    shadowColor: string;
    shadowOffset: {
        height: number;
        width: number;
    };
    shadowOpacity: number;
    shadowRadius: number;
};
export type NativeWidgetFrameShadowProjection = {
    kind: "clear";
} | {
    boxShadow: NativeWidgetFrameBoxShadowValue[];
    fallbackStyle: NativeWidgetFrameLegacyShadowStyle;
    kind: "resolved";
};
export type NativeWidgetBoxShadowSupport = "all" | "none" | "outset";
export declare function toNativeWidgetFrameShadow(layers?: WidgetFrameResolvedBoxShadowLayer[]): NativeWidgetFrameShadowProjection;
export declare function toNativeWidgetSupportedBoxShadow(shadow: NativeWidgetFrameShadowProjection, support?: NativeWidgetBoxShadowSupport): NativeWidgetFrameBoxShadowValue[] | undefined;
export {};