def METHOD_NAME(
        prefix: Prefix,
        version: str,
        additional_dependencies: Sequence[str],
) -> None:
    envdir = lang_base.environment_dir(prefix, ENVIRONMENT_DIR, version)
    venv_cmd = [sys.executable, '-mvirtualenv', envdir]
    python = norm_version(version)
    if python is not None:
        venv_cmd.extend(('-p', python))
    install_cmd = ('python', '-mpip', 'install', '.', *additional_dependencies)
    cmd_output_b(*venv_cmd, cwd='/')
    with in_env(prefix, version):
        lang_base.setup_cmd(prefix, install_cmd)