import type { BackendExplanation } from '@flighthq/types/contract';
import type { PlatformBackend, PlatformEngine, PlatformInfo, PlatformKind, PlatformName, PlatformRuntime } from '@flighthq/types/contract';
export declare function comparePlatformVersions(a: string, b: string): -1 | 0 | 1;
export declare function createPlatformInfo(): PlatformInfo;
export declare function createWebPlatformBackend(): PlatformBackend;
export declare function explainPlatformBackend(): BackendExplanation;
export declare function getPlatformBackend(): PlatformBackend;
export declare function getPlatformEngine(): PlatformEngine;
export declare function getPlatformInfo(out: PlatformInfo): PlatformInfo;
export declare function getPlatformKind(): PlatformKind;
export declare function getPlatformName(): PlatformName;
export declare function getPlatformRuntime(): PlatformRuntime;
export declare function installPlatformHostBackend(backend: PlatformBackend): void;
export declare function isPlatformDesktop(): boolean;
export declare function isPlatformMobile(): boolean;
export declare function isPlatformNative(): boolean;
export declare function isPlatformTouch(): boolean;
export declare function isPlatformVersionAtLeast(minimum: string): boolean;
export declare function isPlatformWeb(): boolean;
export declare function observePlatformHostResult(operation: string, succeeded: boolean): void;
export declare function resetPlatformBackendForTest(): void;
export declare function setPlatformBackend(backend: PlatformBackend | null): void;
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