/**
 * Execute a command and return stdout
 * Uses spawnSync to properly handle arguments with special characters
 * Docker helpers put '--' before container names so a name like '--help' is never read as an option
 */
export declare function execCommand(command: string, args: string[]): string;
/**
 * Execute a command asynchronously and return result
 * For docker commands that need async/await pattern
 */
export declare function execCommandAsync(command: string, args: string[], options?: {
    cwd?: string;
}): Promise<{
    code: number;
    stdout: string;
    stderr: string;
}>;
/**
 * Spawn a command with explicit argv (no shell), streaming complete stdout and
 * stderr lines to onLine as they arrive, and resolve with the exit code and the
 * captured output once the process closes.
 */
export declare function execCommandStreaming(file: string, args: string[], onLine: (line: string) => void, options?: {
    cwd?: string;
    env?: NodeJS.ProcessEnv;
}): Promise<{
    code: number;
    stdout: string;
    stderr: string;
}>;
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