import zarr

from pydantic_zarr.v3 import ArraySpec

ArraySpec.from_array(zarr.empty((1, 1, 1)))

Traceback (most recent call last):
  File "/Users/dstansby/software/zarr/pydantic-zarr/test.py", line 4, in <module>
    ArraySpec.from_array(zarr.empty((1, 1, 1)))
  File "/Users/dstansby/software/zarr/pydantic-zarr/src/pydantic_zarr/v3.py", line 316, in from_array
    dimension_names_actual = auto_dimension_names(array)
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/dstansby/software/zarr/pydantic-zarr/src/pydantic_zarr/v3.py", line 1049, in auto_dimension_names
    return tuple(data.metadata.dimension_names)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: 'NoneType' object is not iterable