fix: fix unique method types

[ST-DDT]

Fixes #456

Note: There is a slight imprecision I couldn't remove.
It is possible to omit the parameters, although the referenced method requires them.
If I fix that, it is no longer possible to omit the empty parameter array.

[codecov]

Codecov Report

Merging #457 (4a40f2c) into main (c208777) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

❗ Current head 4a40f2c differs from pull request most recent head b2e830e. Consider uploading reports for the commit b2e830e to get more accurate results

@@            Coverage Diff             @@
##             main     #457      +/-   ##
==========================================
- Coverage   99.33%   99.33%   -0.01%     
==========================================
  Files        1920     1920              
  Lines      174378   174323      -55     
  Branches      896      896              
==========================================
- Hits       173219   173163      -56     
- Misses       1103     1104       +1     
  Partials       56       56              

Impacted Files	Coverage Δ
src/unique.ts	100.00% <100.00%> (ø)
src/vendor/unique.ts	95.96% <100.00%> (+0.09%)	⬆️
src/helpers.ts	99.30% <0.00%> (-0.18%)	⬇️
src/address.ts	98.55% <0.00%> (-0.16%)	⬇️

[Shinigami92]

Did you see #333 ?

[ST-DDT]

No, i didn't see it (or forgot about it).
This variant also covers non string returning methods.
(But I'm fine, with closing this one, if the other ones get updated and supports non string methods.)