# mypy: allow-untyped-defs
import torch

class ListContains(torch.nn.Module):
    """
    List containment relation can be checked on a dynamic shape or constants.
    """

    def forward(self, x):
        assert x.size(-1) in [6, 2]
        assert x.size(0) not in [4, 5, 6]
        assert "monkey" not in ["cow", "pig"]
        return x + x

example_args = (torch.randn(3, 2),)
tags = {"torch.dynamic-shape", "python.data-structure", "python.assert"}
model = ListContains()