update manager methods

[imrn99]

Description

Associated issue: closes #233

Content description: TODO

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 66.66667% with 4 lines in your changes missing coverage. Please review.

Project coverage is 79.42%. Comparing base (a924645) to head (63b22a3).

Files with missing lines	Patch %	Lines
honeycomb-core/src/attributes/manager.rs	66.66%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #239      +/-   ##
==========================================
+ Coverage   79.21%   79.42%   +0.20%     
==========================================
  Files          52       52              
  Lines        6953     6939      -14     
==========================================
+ Hits         5508     5511       +3     
+ Misses       1445     1428      -17     

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