import type { CommandResult, CommandRunner, CommandRunOptions } from "./types.js";
export declare const neutralSelfUpdateCwd: string;
export declare const defaultRunner: CommandRunner;
export declare function runCommand(runner: CommandRunner, executable: string, args: readonly string[], env: NodeJS.ProcessEnv, options: CommandRunOptions): Promise<CommandResult>;
export declare function lastOutputLine(runner: CommandRunner, executable: string, args: readonly string[], env: NodeJS.ProcessEnv, options: CommandRunOptions): Promise<string | undefined>;