feat(file): support decorator

[ngjaying]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 92.30769% with 3 lines in your changes missing coverage. Please review.

Project coverage is 71.13%. Comparing base (09c3488) to head (62c89aa).
Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/io/file/source.go	85.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3188      +/-   ##
==========================================
+ Coverage   71.12%   71.13%   +0.01%     
==========================================
  Files         386      386              
  Lines       43601    43638      +37     
==========================================
+ Hits        31011    31041      +30     
- Misses      10137    10141       +4     
- Partials     2453     2456       +3     

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