export interface SpawnedCommandExecution {
    exit_code: number;
    stdout: Buffer;
    stderr: Buffer;
    pid: number;
    started_at: string;
    completed_at: string;
}
export declare function spawnCommandOnce(executable: string, argv: string[], cwd: string, timeoutMs: number, environment: NodeJS.ProcessEnv, containProcessTree: boolean): Promise<SpawnedCommandExecution>;