add map type

[tatethurston]

fixes #60

[codecov-commenter]

Codecov Report

Merging #75 (21d88f3) into main (1db68fa) will decrease coverage by 0.91%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main      #75      +/-   ##
==========================================
- Coverage   26.91%   26.00%   -0.92%     
==========================================
  Files          10       10              
  Lines         769      796      +27     
  Branches      232      231       -1     
==========================================
  Hits          207      207              
- Misses        562      589      +27     

Impacted Files	Coverage Δ
src/autogenerate/index.ts	3.37% <0.00%> (-0.48%)	⬇️
src/utils.ts	1.50% <0.00%> (-0.03%)	⬇️

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