Using xarray with zarr.ABSStore objects

[nhsavage]

I have a Zarr file on Amazon blob storage which I want to read without downloading. Zarr has the ABSStore class to do this, but xarray doesn't seem to be able to open it. I can't find any examples of people adopting this workflow and I am starting to wonder if this is because it can't be done this way. It is equally likely that I have got the wrong end of the stick somewhere, so any advice either way would be very welcome.

store = zarr.ABSStore(container='my_container_name', prefix='monthly/', account_name=my_account_name, account_key=my_cred)  
dataset = xarray.open_dataset(store)

however, this fails with:

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
----> 5 dataset = xarray.open_dataset(store)

python3.7/site-packages/xarray/backends/api.py in open_dataset(filename_or_obj, group, decode_cf, mask_and_scale, decode_times, autoclose, concat_characters, decode_coords, engine, chunks, lock, cache, drop_variables, backend_kwargs, use_cftime, decode_timedelta)
    534                 "with engine='scipy' or 'h5netcdf'"
    535             )
--> 536         engine = _get_engine_from_magic_number(filename_or_obj)
    537         if engine == "scipy":
    538             store = backends.ScipyDataStore(filename_or_obj, **backend_kwargs)

python3.7/site-packages/xarray/backends/api.py in _get_engine_from_magic_number(filename_or_obj)
    113         magic_number = filename_or_obj[:8]
    114     else:
--> 115         if filename_or_obj.tell() != 0:
    116             raise ValueError(
    117                 "file-like object read/write pointer not at zero "

AttributeError: 'ABSStore' object has no attribute 'tell'

For info, versions of key packages are:
Zarr: 2.5.0
xarray: 0.16.1
azure-storage-blob: 2.1.0

[nhsavage]

thanks to some help from my colleagues, the key mistake here is that I need to use:
open_zarr not open_data
Also I had not set the creditials correctly.

import zarr
import xarray
xarray.set_options(display_style='text') # Work around for AML bug that won't display HTML output. 
store = zarr.ABSStore(container='my_container_name', prefix='monthly/', account_name="my_account_name", blob_service_kwargs={"sas_token":SAS})
xr = xarray.open_zarr(store)
xr

(without the display_style option then if you just put xr in a jupyter notebook for example, then it doesn't show anything, although print does work)