vsp add alerts get

[tanjiangyu-ghca]

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 #402 (dce29b5) into vsp_1230 (d67a1de) will increase coverage by 0.21%.
The diff coverage is 33.33%.

@@             Coverage Diff              @@
##           vsp_1230     #402      +/-   ##
============================================
+ Coverage     70.34%   70.55%   +0.21%     
============================================
  Files           163      173      +10     
  Lines         15876    17655    +1779     
  Branches       2265     2570     +305     
============================================
+ Hits          11168    12457    +1289     
- Misses         4034     4437     +403     
- Partials        674      761      +87     

Impacted Files	Coverage Δ
delfin/drivers/hitachi/vsp/rest_handler.py	42.13% <25.00%> (-0.40%)	⬇️
delfin/drivers/hitachi/vsp/vsp_stor.py	70.30% <37.50%> (-0.20%)	⬇️
delfin/drivers/dell_emc/vmax/client.py	73.35% <0.00%> (-2.12%)	⬇️
delfin/drivers/utils/ssh_client.py	16.81% <0.00%> (-2.07%)	⬇️
delfin/drivers/dell_emc/vmax/vmax.py	80.55% <0.00%> (-2.06%)	⬇️
delfin/drivers/dell_emc/vmax/rest.py	44.18% <0.00%> (-1.61%)	⬇️
delfin/drivers/fake_storage/__init__.py	95.06% <0.00%> (-0.55%)	⬇️
delfin/drivers/driver.py	61.76% <0.00%> (-0.36%)	⬇️
delfin/common/constants.py	100.00% <0.00%> (ø)
delfin/task_manager/tasks/resources.py	86.73% <0.00%> (ø)
... and 13 more