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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def import_submodules(package, recursive=True):
 """ Import all submodules of a module, recursively, including subpackages :param package: package (name or actual module) :type package: str | module :rtype: dict[str, types.ModuleType] """

    if isinstance(package, str):
        package = importlib.import_module(package)
    results = {}
    for loader, name, is_pkg in pkgutil.walk_packages(package.__path__):
        full_name = package.__name__ + "." + name
        results[name] = importlib.import_module(full_name)
        if recursive and is_pkg:
            results.update(import_submodules(full_name))
    return results