Searching for a None value leads to AttributeError: 'NoneType' object has no attribute 'strip'

[Zethson]

Add a description

print(bt.Gene.search(None, field="symbol"))

leads to

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[42], line 1
----> 1 print(bt.Gene.search(None, field="symbol"))

File ~/PycharmProjects/lamindb/lamindb/_record.py:401, in search(cls, string, field, limit, case_sensitive)
    390 @classmethod  # type: ignore
    391 @doc_args(Record.search.__doc__)
    392 def search(
   (...)
    398     case_sensitive: bool = False,
    399 ) -> QuerySet:
    400     """{}"""  # noqa: D415
--> 401     return _search(
    402         cls=cls,
    403         string=string,
    404         field=field,
    405         limit=limit,
    406         case_sensitive=case_sensitive,
    407     )

File ~/PycharmProjects/lamindb/lamindb/_record.py:319, in _search(cls, string, field, limit, case_sensitive, using_key, truncate_string)
    316         n_80_pct = int(len_string * 0.8)
    317         string = string[:n_80_pct]
--> 319 string = string.strip()
    320 string_escape = re.escape(string)
    322 exact_lookup = Exact if case_sensitive else IExact

AttributeError: 'NoneType' object has no attribute 'strip'

[Koncopd]

But search assumes a string as an input.