Fix some todos

[zydmayday]

1. solve negative zero issues

[codecov-commenter]

Codecov Report

Merging #158 (ba47b0d) into main (c3d2c17) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #158   +/-   ##
=======================================
  Coverage   98.13%   98.14%           
=======================================
  Files         190      191    +1     
  Lines        1929     1937    +8     
=======================================
+ Hits         1893     1901    +8     
  Misses         36       36           

Impacted Files	Coverage Δ
ramda/uniqBy.py	100.00% <ø> (ø)
ramda/private/_equals.py	100.00% <100.00%> (ø)
ramda/private/_helper.py	96.87% <100.00%> (+0.32%)	⬆️
ramda/__init__.py	100.00% <0.00%> (ø)
ramda/trim.py	100.00% <0.00%> (ø)

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