export interface ExternalCommandOptions {
    cwd?: string;
    timeoutMs?: number;
    maxBufferBytes?: number;
    input?: string;
}
export declare class ExternalCommandError extends Error {
    readonly command: string;
    readonly args: readonly string[];
    readonly stderr: string;
    constructor(command: string, args: readonly string[], stderr: string, options?: ErrorOptions);
}
export declare function runExternalCommand(command: string, args: readonly string[], options?: ExternalCommandOptions): string;
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