def test_layers_view():
    X = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
    L = np.array([[10, 11, 12], [13, 14, 15], [16, 17, 18]])
    real_adata = ad.AnnData(X)
    real_adata.layers["L"] = L
    view_adata = real_adata[1:, 1:]
    real_hash = joblib.hash(real_adata)
    view_hash = joblib.hash(view_adata)

    assert view_adata.is_view

    with pytest.raises(ValueError):
        view_adata.layers["L2"] = L + 2

    assert view_adata.is_view  # Failing to set layer item makes adata not view
    assert real_hash == joblib.hash(real_adata)
    assert view_hash == joblib.hash(view_adata)

    view_adata.layers["L2"] = L[1:, 1:] + 2

    assert not view_adata.is_view
    assert real_hash == joblib.hash(real_adata)
    assert view_hash != joblib.hash(view_adata)
def list_query_results_for_resource_group(
        self,
        resource_group_name: str,
        query_options: Optional["_models.QueryOptions"] = None,
        **kwargs: Any
    ) -> AsyncIterable["_models.PolicyTrackedResourcesQueryResults"]:
        """Queries policy tracked resources under the resource group.

        :param resource_group_name: Resource group name.
        :type resource_group_name: str
        :param query_options: Parameter group.
        :type query_options: ~azure.mgmt.policyinsights.models.QueryOptions
        :keyword callable cls: A custom type or function that will be passed the direct response
        :return: An iterator like instance of either PolicyTrackedResourcesQueryResults or the result of cls(response)
        :rtype: ~azure.core.async_paging.AsyncItemPaged[~azure.mgmt.policyinsights.models.PolicyTrackedResourcesQueryResults]
        :raises: ~azure.core.exceptions.HttpResponseError
        """
        cls = kwargs.pop('cls', None)  # type: ClsType["_models.PolicyTrackedResourcesQueryResults"]
        error_map = {
            401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
        }
        error_map.update(kwargs.pop('error_map', {}))