Error when just executing llcreader

[mochell]

I just installed xmitGCM and try to reproduce the examples.
I try this:

from xmitgcm import llcreader
model = llcreader.ECCOPortalLLC2160Model()

I get this error message

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
File /Users/mommehell/Projects/2023_wind_emulator/analysis/test_files/test_load_MITgcm.py:1
----> 1 model = llcreader.ECCOPortalLLC2160Model()

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/xmitgcm/llcreader/known_models.py:200, in ECCOPortalLLC2160Model.__init__(self)
    197 mask_path = 'https://storage.googleapis.com/pangeo-ecco/llc/masks/llc_2160_masks.zarr/'
    198 store = stores.NestedStore(fs, base_path=base_path, mask_path=mask_path,
    199                            grid_path=grid_path, shrunk=True, join_char='/')
--> 200 super(ECCOPortalLLC2160Model, self).__init__(store)

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/xmitgcm/llcreader/llcmodel.py:613, in BaseLLCModel.__init__(self, store)
    611 self.shape = (self.nz, self.nface, self.nx, self.nx)
    612 if self.store.shrunk:
--> 613     self.masks = self._get_masks()
    614     from .shrunk_index import all_index_data
    615     mykey = self.nx if self.domain == 'global' else f'{self.domain}_{self.nx}'

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/xmitgcm/llcreader/llcmodel.py:623, in BaseLLCModel._get_masks(self)
    621 def _get_masks(self):
    622     masks = {}
--> 623     zgroup = self.store.open_mask_group()
    624     for point in ['c', 'w', 's']:
    625         mask_faces = dsa.from_zarr(zgroup['mask_' + point]).astype('bool')

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/xmitgcm/llcreader/stores.py:115, in BaseStore.open_mask_group(self)
    107 """Open the zarr group that contains the masks
    108 
    109 Returns
    110 -------
    111 mask_group : zarr.Group
    112 """
    114 mapper = self.mask_fs.get_mapper(self.mask_path)
--> 115 zgroup = zarr.open_consolidated(mapper)
    116 return zgroup

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/zarr/api/synchronous.py:215, in open_consolidated(use_consolidated, *args, **kwargs)
    210 def open_consolidated(*args: Any, use_consolidated: Literal[True] = True, **kwargs: Any) -> Group:
    211     """
    212     Alias for :func:`open_group` with ``use_consolidated=True``.
    213     """
    214     return Group(
--> 215         sync(async_api.open_consolidated(*args, use_consolidated=use_consolidated, **kwargs))
    216     )

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/zarr/core/sync.py:163, in sync(coro, loop, timeout)
    160 return_result = next(iter(finished)).result()
    162 if isinstance(return_result, BaseException):
--> 163     raise return_result
    164 else:
    165     return return_result

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/zarr/core/sync.py:119, in _runner(coro)
    114 """
    115 Await a coroutine and return the result of running it. If awaiting the coroutine raises an
    116 exception, the exception will be returned.
    117 """
    118 try:
--> 119     return await coro
    120 except Exception as ex:
    121     return ex

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/zarr/api/asynchronous.py:352, in open_consolidated(use_consolidated, *args, **kwargs)
    347 if use_consolidated is not True:
    348     raise TypeError(
    349         "'use_consolidated' must be 'True' in 'open_consolidated'. Use 'open' with "
    350         "'use_consolidated=False' to bypass consolidated metadata."
    351     )
--> 352 return await open_group(*args, use_consolidated=use_consolidated, **kwargs)

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/zarr/api/asynchronous.py:806, in open_group(store, mode, cache_attrs, synchronizer, path, chunk_store, storage_options, zarr_version, zarr_format, meta_array, attributes, use_consolidated)
    803 if chunk_store is not None:
    804     warnings.warn("chunk_store is not yet implemented", RuntimeWarning, stacklevel=2)
--> 806 store_path = await make_store_path(store, mode=mode, storage_options=storage_options, path=path)
    808 if attributes is None:
    809     attributes = {}

File /opt/anaconda3/envs/py311_flux/lib/python3.11/site-packages/zarr/storage/_common.py:316, in make_store_path(store_like, path, mode, storage_options)
    314     else:
    315         msg = f"Unsupported type for store_like: '{type(store_like).__name__}'"  # type: ignore[unreachable]
--> 316         raise TypeError(msg)
    318     result = await StorePath.open(store, path=path_normalized, mode=mode)
    320 if storage_options and not used_storage_options:

TypeError: Unsupported type for store_like: 'FSMap'

the same appears when trying on Pleiades with
llcreader.PleiadesLLC2160Model()

It is a problem with the zarr module, but I can't pin it down.

versions:
python 3.11.8 | packaged by conda-forge | (main, Feb 16 2024, 20:49:36) [Clang 16.0.6 ]
xarray 2024.10.0
xmitgcm 0.5.2
zarr 3.0.5
dask 2025.5.1

thanks!