def getitem(source, index):
    """Forward one or several items from an asynchronous sequence.

    The argument can either be a slice or an integer.
    See the slice and item operators for more information.
    """
    if isinstance(index, builtins.slice):
        return slice.raw(source, index.start, index.stop, index.step)
    if isinstance(index, int):
        return item.raw(source, index)
    raise TypeError("Not a valid index (int or slice)")
def getitem ( source , index ) : if isinstance ( index , builtins . slice ) : return slice . raw ( source , index . start , index . stop , index . step ) if isinstance ( index , int ) : return item . raw ( source , index ) raise TypeError ( "Not a valid index (int or slice)" )
Forward one or several items from an asynchronous sequence.

    The argument can either be a slice or an integer.
    See the slice and item operators for more information.