fix: improve typescript types

[JustinBeckwith]

No description provided.

[codecov]

Codecov Report

Merging #663 into master will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #663      +/-   ##
==========================================
- Coverage   96.48%   96.48%   -0.01%     
==========================================
  Files          15       15              
  Lines       13526    13509      -17     
  Branches      850      848       -2     
==========================================
- Hits        13051    13034      -17     
  Misses        472      472              
  Partials        3        3              

Impacted Files	Coverage Δ
src/app-profile.ts	99.59% <100.00%> (-0.01%)	⬇️
src/chunktransformer.ts	100.00% <100.00%> (ø)
src/cluster.ts	99.34% <100.00%> (-0.01%)	⬇️
src/decorateStatus.ts	100.00% <100.00%> (ø)
src/family.ts	99.58% <100.00%> (-0.01%)	⬇️
src/filter.ts	100.00% <100.00%> (ø)
src/index.ts	100.00% <100.00%> (ø)
src/instance.ts	99.82% <100.00%> (-0.01%)	⬇️
src/mutation.ts	100.00% <100.00%> (ø)
src/row.ts	100.00% <100.00%> (ø)
... and 1 more

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