261 add block filtering when sampling

[Jiaweihu08]

Description

Fixes #261

Checklist:

• New feature / bug fix has been committed following the Contribution guide.
• Add comments to the code (make it easier for the community!).
• Change the documentation.
• Add tests.
• Your branch is updated to the main branch (dependent changes have been merged).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6bdc302) 91.04% compared to head (d9c4ec2) 91.05%.
Report is 1 commits behind head on main-1.0.0.

Additional details and impacted files

@@             Coverage Diff             @@
##           main-1.0.0     #263   +/-   ##
===========================================
  Coverage       91.04%   91.05%           
===========================================
  Files              95       95           
  Lines            2557     2559    +2     
  Branches          325      317    -8     
===========================================
+ Hits             2328     2330    +2     
  Misses            229      229           

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