fix: compatibility with old plugins

[alexander-akait]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

fixes #236

Breaking Changes

No

Additional Info

No

[codecov]

Codecov Report

Merging #237 (82d4492) into master (d0af551) will decrease coverage by 0.79%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master     #237      +/-   ##
==========================================
- Coverage   97.19%   96.39%   -0.80%     
==========================================
  Files           2        2              
  Lines         107      111       +4     
  Branches       33       35       +2     
==========================================
+ Hits          104      107       +3     
- Misses          3        4       +1     

Impacted Files	Coverage Δ
src/index.js	96.36% <80.00%> (-0.81%)	⬇️

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