export type HostMaintenanceOperation = 'transactions';
export interface HostMaintenanceRequest {
    operation: HostMaintenanceOperation;
    prepareBlankFzTest?: boolean;
}
export interface HostMaintenancePlan {
    operation: HostMaintenanceOperation;
    mutation: boolean;
    activeSlot: 'blue' | 'green';
    workingDirectory: string;
    unit: string;
    credentialNames: readonly string[];
    argv: readonly string[];
}
export interface HostMaintenanceResult {
    plan: HostMaintenancePlan;
    exitCode: number;
    output: string;
}
export interface HostMaintenanceRuntime {
    uid(): number;
    read(path: string): string;
    inspect(path: string): {
        regular: boolean;
        symbolic: boolean;
        uid: number;
        links: number;
        mode: number;
        size: number;
    };
    exec(argv: readonly string[]): Promise<{
        exitCode: number;
        output: string;
    }>;
}
export declare function planHostMaintenance(request: HostMaintenanceRequest, runtime?: HostMaintenanceRuntime): HostMaintenancePlan;
export declare function applyHostMaintenance(request: HostMaintenanceRequest, runtime?: HostMaintenanceRuntime): Promise<HostMaintenanceResult>;