`ModuleNotFoundError` when using elasticsearch as storage backend

[violenil]

Code examples from this documentation with elasticsearch as storage result in ModuleNotFoundError.

Minimal example:

from docarray import DocumentArray, Document

da = DocumentArray(
    storage='elasticsearch',
    config={'index_name': 'new_index', 'n_dim': 128},
)

with da:
    da.extend([Document() for _ in range(1000)])

da.summary()

Example code runs through and displays .summary():

╭─────────────── Documents Summary ───────────────╮
│                                                 │
│   Type                   DocumentArrayElastic   │
│   Length                 1000                   │
│   Homogenous Documents   True                   │
│   Common Attributes      ('id',)                │
│   Multimodal dataclass   False                  │
│                                                 │
╰─────────────────────────────────────────────────╯
╭───────────────────── Attributes Summary ─────────────────────╮
│                                                              │
│   Attribute   Data type   #Unique values   Has empty value   │
│  ──────────────────────────────────────────────────────────  │
│   id          ('str',)    1000             False             │
│                                                              │
╰──────────────────────────────────────────────────────────────╯
╭──────── DocumentArrayElastic Config ────────╮
│                                             │
│   n_dim             128                     │
│   distance          cosine                  │
│   hosts             http://localhost:9200   │
│   index_name        new_index             │
│   es_config         {}                      │
│   index_text        False                   │
│   tag_indices       []                      │
│   batch_size        64                      │
│   ef_construction   None                    │
│   m                 None                    │
│   columns           []                      │
│                                             │
╰─────────────────────────────────────────────╯

But then raises ModuleNotFoundError:

Exception ignored in: <function BaseGetSetDelMixin.__del__ at 0x7fa010267e50>
Traceback (most recent call last):
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/docarray/array/storage/base/getsetdel.py", line 330, in __del__
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/docarray/array/storage/elastic/getsetdel.py", line 128, in _save_offset2ids
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/docarray/array/storage/elastic/backend.py", line 217, in _update_offset2ids_meta
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/elasticsearch/_sync/client/utils.py", line 414, in wrapped
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/elasticsearch/_sync/client/indices.py", line 1064, in exists
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/elasticsearch/_sync/client/_base.py", line 390, in perform_request
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/elasticsearch/_sync/client/_base.py", line 278, in perform_request
  File "/Users/jinadev/opt/anaconda3/envs/venv-now/lib/python3.9/site-packages/elasticsearch/_sync/client/_base.py", line 274, in mimetype_header_to_compat
ModuleNotFoundError: import of re halted; None in sys.modules

Not clear whether this is a bug in docarray or elasticsearch. See discussion.