fix ts types

[undefined-moe]

Checklist

• I have ensured my pull request is not behind the main or master branch of the original repository.
• I have rebased all commits where necessary so that reviewing this pull request can be done without having to merge it first.
• I have written a commit message that passes commitlint linting.
• I have ensured that my code changes pass linting tests.
• I have ensured that my code changes pass unit tests.
• I have described my pull request and the reasons for code changes along with context if necessary.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (ca6a142) to head (d8e46bf).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #285   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines          176       176           
  Branches        32        32           
=========================================
  Hits           176       176           

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[uhop]

LGTM

[visvk]

@uhop maybe this could be released as 5.2.1?

[uhop]

@uhop maybe this could be released as 5.2.1?

It broke my stuff. It is fixed now, but waiting on dependencies in #288

As soon as the c8/yargs fiasco is sorted out it'll be released.