def test_drop_obs_column():
    adata = ad.AnnData(np.array(X_list), obs=obs_dict, dtype="int32")

    subset = adata[:2]
    assert subset.is_view
    # returns a copy of obs
    assert subset.obs.drop(columns=["oanno1"]).columns.tolist() == ["oanno2", "oanno3"]
    assert subset.is_view
    # would modify obs, so it should actualize subset and not modify adata
    subset.obs.drop(columns=["oanno1"], inplace=True)
    assert not subset.is_view
    assert subset.obs.columns.tolist() == ["oanno2", "oanno3"]

    assert adata.obs.columns.tolist() == ["oanno1", "oanno2", "oanno3"]
def _load_from_data(self, data):
        self._replay_data = data
        self._verify_toplevel_json(self._replay_data)

        self._rpms = self._replay_data.get("rpms", [])
        self._assert_type(self._rpms, list, "rpms", "array")

        self._groups = self._replay_data.get("groups", [])
        self._assert_type(self._groups, list, "groups", "array")

        self._environments = self._replay_data.get("environments", [])
        self._assert_type(self._environments, list, "environments", "array")