fix: get function args error

[czy88840616]

No description provided.

[gitpod-io]

[codecov]

Codecov Report

Merging #725 (29ff866) into 2.x (9697834) will increase coverage by 0.27%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              2.x     #725      +/-   ##
==========================================
+ Coverage   85.99%   86.27%   +0.27%     
==========================================
  Files         146      146              
  Lines        5813     5814       +1     
  Branches     1053     1053              
==========================================
+ Hits         4999     5016      +17     
+ Misses        779      766      -13     
+ Partials       35       32       -3     

Impacted Files	Coverage Δ
packages/decorator/src/util/index.ts	85.71% <100.00%> (+33.63%)	⬆️

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