>>> store = await ts.open(
...     {
...         'driver': 'zarr',
...         'kvstore': {
...             'driver': 'memory'
...         }
...     },
...     shape=[1000, 2000, 3000],
...     dtype=ts.float32,
...     create=True)
>>> store.chunk_layout
ChunkLayout({
  'grid_origin': [0, 0, 0],
  'inner_order': [0, 1, 2],
  'read_chunk': {'shape': [101, 101, 101]},
  'write_chunk': {'shape': [101, 101, 101]},
})