import torch

from torch._export.db.case import export_case


@export_case(
    example_inputs=(torch.ones(3, 2),),
    tags={"torch.dynamic-shape", "python.data-structure", "python.assert"},
)
def list_contains(x):
    """
    List containment relation can be checked on a dynamic shape or constants.
    """
    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