transform callables wrap original qfunc

[albi3ro]

Context:

Issue #5843 made me realize when we apply a transform to a qfunc callable, we should use functools.wraps to preserve the docstring and signature of the original function.

Description of the Change:

Adds functools.wraps to the transformed qfunc.

Benefits:

transformed qfunc's keep information about the original function.

Possible Drawbacks:

Related GitHub Issues:

Fixes #5843

[dwierichs]

Nice!

[PietropaoloFrisoni]

Thanks! I cannot find inspect among the required packages, but looks like is already used everywhere in the source code

[albi3ro]

Thanks! I cannot find inspect among the required packages, but looks like is already used everywhere in the source code

inspect is a built in python package.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.67%. Comparing base (9b3060f) to head (073ba31).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5857      +/-   ##
==========================================
- Coverage   99.67%   99.67%   -0.01%     
==========================================
  Files         421      421              
  Lines       40189    39894     -295     
==========================================
- Hits        40060    39764     -296     
- Misses        129      130       +1     

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