def __init__(self, value, slice_, ctx=ast.Load, return_type=None):
    ast.Subscript.__init__(self, value=value, slice=slice_, ctx=ctx)
    self._return_type = return_type
def __init__(self, value, slice_, ctx=ast.Load, return_type=None):
    ast.Subscript.__init__(self, value=value, slice=slice_, ctx=ctx)
    self._return_type = return_type