add method chain

[zydmayday]

No description provided.

[codecov-commenter]

Codecov Report

Merging #139 (1bae02b) into main (2922e69) will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #139      +/-   ##
==========================================
+ Coverage   97.00%   97.07%   +0.06%     
==========================================
  Files         175      179       +4     
  Lines        1769     1811      +42     
==========================================
+ Hits         1716     1758      +42     
  Misses         53       53              

Impacted Files	Coverage Δ
ramda/__init__.py	100.00% <100.00%> (ø)
ramda/chain.py	100.00% <100.00%> (ø)
ramda/private/_flatCat.py	100.00% <100.00%> (ø)
ramda/private/_forceReduced.py	100.00% <100.00%> (ø)
ramda/private/_xchain.py	100.00% <100.00%> (ø)

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