How to use the cloudpickle.CloudPickler.dispatch.get function in cloudpickle

def unregister():
    """Unregister the cloudpickle extension.
    """
    if CloudPickler.dispatch.get(GeneratorType) is _save_generator:
        # make sure we are only removing the dispatch we added, not someone
        # else's
        del CloudPickler.dispatch[GeneratorType]

    if sys.version_info >= (3, 5, 0):
        if CloudPickler.dispatch.get(CoroutineType) is _save_coroutine:
            del CloudPickler.dispatch[CoroutineType]

    if sys.version_info >= (3, 6, 0):
        if (CloudPickler.dispatch.get(AsyncGeneratorType) is
                _save_async_generator):
            del CloudPickler.dispatch[AsyncGeneratorType]

def unregister():
    """Unregister the cloudpickle extension.
    """
    if CloudPickler.dispatch.get(GeneratorType) is _save_generator:
        # make sure we are only removing the dispatch we added, not someone
        # else's
        del CloudPickler.dispatch[GeneratorType]

    if sys.version_info >= (3, 5, 0):
        if CloudPickler.dispatch.get(CoroutineType) is _save_coroutine:
            del CloudPickler.dispatch[CoroutineType]

    if sys.version_info >= (3, 6, 0):
        if (CloudPickler.dispatch.get(AsyncGeneratorType) is
                _save_async_generator):
            del CloudPickler.dispatch[AsyncGeneratorType]

def unregister():
    """Unregister the cloudpickle extension.
    """
    if CloudPickler.dispatch.get(GeneratorType) is _save_generator:
        # make sure we are only removing the dispatch we added, not someone
        # else's
        del CloudPickler.dispatch[GeneratorType]

    if sys.version_info >= (3, 5, 0):
        if CloudPickler.dispatch.get(CoroutineType) is _save_coroutine:
            del CloudPickler.dispatch[CoroutineType]

    if sys.version_info >= (3, 6, 0):
        if (CloudPickler.dispatch.get(AsyncGeneratorType) is
                _save_async_generator):
            del CloudPickler.dispatch[AsyncGeneratorType]