Make @safe((TypeError, ValueError)) variant

[thepabloaguilar]

Make @safe((TypeError, ValueError)) variant

Checklist

• I have double checked that there are no unrelated changes in this pull request (old patches, accidental config files, etc)
• I have created at least one test case for the changes I have made
• I have updated the documentation for the changes I have made
• I have added my changes to the CHANGELOG.md

Related issues

Closes #605

[codecov]

Codecov Report

Merging #1199 (0882c19) into master (8824d0f) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master     #1199   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           79        79           
  Lines         2414      2425   +11     
  Branches       208       211    +3     
=========================================
+ Hits          2414      2425   +11     

Impacted Files	Coverage Δ
returns/result.py	100.00% <100.00%> (ø)

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[sobolevn]

Great work! Thank you!

Two minor things:

1. Better example in the docs
2. Better arg name