docs: fix docstring in search driver

[bwanglzu]

discovered while writing docs.

[codecov]

Codecov Report

Merging #2174 (2d017d7) into master (b3550e9) will increase coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2174      +/-   ##
==========================================
+ Coverage   90.37%   90.46%   +0.08%     
==========================================
  Files         211      211              
  Lines       11269    11269              
==========================================
+ Hits        10184    10194      +10     
+ Misses       1085     1075      -10     

Flag	Coverage Δ
daemon	50.24% <ø> (ø)
jina	90.91% <ø> (+0.09%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
jina/drivers/search.py	98.18% <ø> (ø)
jina/peapods/zmq/__init__.py	82.01% <0.00%> (+2.13%)	⬆️
jina/clients/base.py	83.33% <0.00%> (+2.50%)	⬆️

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[github-actions]

Latency summary

Current PR yields:

• 😶 index QPS at 1175, delta to last 3 avg.: +2%
• 😶 query QPS at 20, delta to last 3 avg.: +3%

Breakdown

Version	Index QPS	Query QPS
current	1175	20
1.0.9	1169	19
1.0.8	1127	19

Backed by latency-tracking. Further commits will update this comment.

[nan-wang]

LGTM👍