def METHOD_NAME(mrcs_data):
    src = ImageSource.from_file(f"{DATA_FOLDER}/empiar_10076_7.cs")
    arr = src[:]
    assert arr.shape == (7, 320, 320)
    starfile_data = ImageSource.from_file(
        f"{DATA_FOLDER}/empiar_10076_7.star", datadir=DATA_FOLDER, lazy=False
    )[:]
    assert torch.allclose(arr, starfile_data)