import { ScaledSize } from "react-native";
import React from "react";
export declare type DeviceType = "mobile" | "desktop";
export declare type ScreenSizeChangeListener = () => void;
declare class StyleEnvironment {
    private serverSideHeadElements;
    private deviceType;
    constructor();
    setDeviceType(deviceType: DeviceType): void;
    getDeviceType(): DeviceType;
    getScreenSize(): ScaledSize;
    getScreenWidth(): number;
    getScreenHeight(): number;
    addScreenSizeChangeListener(listener: ScreenSizeChangeListener): void;
    removeScreenSizeChangeListener(listener: ScreenSizeChangeListener): void;
    updateHeadElement<T extends keyof JSX.IntrinsicElements>(key: string, type: T, props: any, content?: string): void;
    getServerSideHeadElements(): React.ReactElement;
}
declare const _default: StyleEnvironment;
export default _default;