Update to use named exports project-wide and add a missing JSDoc comment

[brandongregoryscott]

Fixes issue #10

Added in some missing explicit types and a JSDoc comment, too.

[codecov]

Codecov Report

Merging #11 into master will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master       #11   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            8         8           
  Lines          156       158    +2     
  Branches        18        18           
=========================================
+ Hits           156       158    +2     

Impacted Files	Coverage Δ
src/tests/factories/index.ts	100.00% <100.00%> (ø)

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[wintondeshong]

Thanks @brandongregoryscott ! perfect timing as I need these right now :) - i'll go ahead and merge it and bundle it in the release I'll likely be creating today. Add a hook right now.