import type { BackendExplanation, DeviceBackend, DeviceCapabilities, DeviceDisplayMetrics, DeviceInfo, SafeAreaInsets } from '@flighthq/types/contract';
export declare function createDeviceCapabilities(): DeviceCapabilities;
export declare function createDeviceDisplayMetrics(): DeviceDisplayMetrics;
export declare function createDeviceInfo(): DeviceInfo;
export declare function createSafeAreaInsets(): SafeAreaInsets;
export declare function createWebDeviceBackend(): DeviceBackend;
export declare function enableWebSafeAreaInsets(): () => void;
export declare function explainDeviceBackend(): BackendExplanation;
export declare function getDeviceBackend(): DeviceBackend;
export declare function getDeviceCapabilities(out: DeviceCapabilities): DeviceCapabilities;
export declare function getDeviceDisplayMetrics(out: DeviceDisplayMetrics): DeviceDisplayMetrics;
export declare function getDeviceId(): string;
export declare function getDeviceInfo(out: DeviceInfo): DeviceInfo;
export declare function getSafeAreaInsets(out: SafeAreaInsets): SafeAreaInsets;
export declare function installDeviceHostBackend(backend: DeviceBackend): void;
export declare function observeDeviceHostResult(operation: string, succeeded: boolean): void;
export declare function refreshDeviceInfo(): void;
export declare function resetDeviceBackendForTest(): void;
export declare function setDeviceBackend(backend: DeviceBackend | null): void;
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