threadsafe impl

[khezen]

issue #4

[codecov]

Codecov Report

Merging #5 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master     #5   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           9     10    +1     
  Lines         315    396   +81     
=====================================
+ Hits          315    396   +81

Impacted Files	Coverage Δ
population.go	100% <ø> (ø)	⬆️
populationTS.go	100% <100%> (ø)

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