from xarray.tests import create_test_data
create_test_data()

---------------------------------------------------------------------------
AssertionError                            Traceback (most recent call last)
Cell In[3], line 2
      1 from xarray.tests import create_test_data
----> 2 create_test_data()

File [~/repos/xarray/xarray/tests/__init__.py:329](http://localhost:8888/lab/workspaces/auto-P/tree/repos/devel/arraylake/~/repos/xarray/xarray/tests/__init__.py#line=328), in create_test_data(seed, add_attrs, dim_sizes)
    327 obj.coords["numbers"] = ("dim3", numbers_values)
    328 obj.encoding = {"foo": "bar"}
--> 329 assert all(var.values.flags.writeable for var in obj.variables.values())
    330 return obj

AssertionError: