Issue #598 extend support for the hashmap functions

[rootart]

[codecov[bot]]

Codecov Report

:x: Patch coverage is 81.91489% with 34 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 64.3%. Comparing base (f34935c) to head (0dadbb0). :warning: Report is 87 commits behind head on master.

Files with missing lines	Patch %	Lines
tests/test_backend.py	15.8%	32 Missing :warning:
django_redis/client/default.py	98.5%	1 Missing :warning:
django_redis/client/sharded.py	98.7%	0 Missing and 1 partial :warning:

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #746     +/-   ##
========================================
+ Coverage    63.3%   64.3%   +1.1%     
========================================
  Files          43      43             
  Lines        3215    3389    +174     
  Branches      244     287     +43     
========================================
+ Hits         2034    2179    +145     
- Misses       1164    1192     +28     
- Partials       17      18      +1     

Flag	Coverage Δ
mypy	38.2% <40.4%> (+0.2%)	:arrow_up:
tests	91.0% <99.2%> (+0.7%)	:arrow_up:

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[WisdomPill]

@rootart do you have time to finish this PR? otherwise I can take it... that said, thanks for the effort you've put in this project so far, it is highly appreciated 😄

[rootart]

I'm happy to come back and continue some work on the PR 😄

looks great, but please add versioning in another PR so that it can be also tested separately

Would you suggest deleting versioning, even in the newly added interfaces? There is definitely a dependency on the hset, and the logic for the key generation must align with the other methods, like in hmget. I updated the existing functions with correct support of versioning in this PR https://github.com/jazzband/django-redis/pull/768 if we decide to start with it first.

[2ykwang]

It seems like some work is duplicated; could you please take a look at my PR as well? @rootart @WisdomPill