[Typescript]: Export "clear" function def

[Meemaw]

Fixes #256

[codecov]

Codecov Report

Merging #257 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #257   +/-   ##
=======================================
  Coverage   98.75%   98.75%           
=======================================
  Files           1        1           
  Lines         160      160           
  Branches       44       44           
=======================================
  Hits          158      158           
  Misses          2        2           

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[Meemaw]

I see this is a duplicate of #250