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[zhilong-xu]

What this PR does / why we need it:

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:

Release note:

[codecov]

Codecov Report

Merging #411 (d7ea065) into pure_2022 (790f769) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           pure_2022     #411   +/-   ##
==========================================
  Coverage      70.59%   70.59%           
==========================================
  Files            180      180           
  Lines          18629    18629           
  Branches        2746     2746           
==========================================
  Hits           13151    13151           
  Misses          4638     4638           
  Partials         840      840           

Impacted Files	Coverage Δ
delfin/drivers/pure/flasharray/consts.py	100.00% <ø> (ø)
delfin/drivers/pure/flasharray/pure_flasharray.py	82.62% <ø> (ø)
delfin/drivers/pure/flasharray/rest_handler.py	33.78% <ø> (ø)