export type InstallMethod = 'npm' | 'pnpm' | 'yarn' | 'bun' | 'source' | 'unknown';
export interface InstallDiagnosis {
    method: InstallMethod;
    root: string;
    updateCommand: string;
    detail: string;
}
export declare function detectInstallMethod(root: string, env?: NodeJS.ProcessEnv, exists?: (file: string) => boolean): InstallDiagnosis;
export declare function terminalDiagnostics(env?: NodeJS.ProcessEnv, platform?: NodeJS.Platform, arch?: NodeJS.Architecture): string[];
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