Add batch sending items

[IamDejv]

Description

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Motivation and context

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or closes #num, the issue will be automatically closed when the pull is accepted.)

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Types of changes

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.53%. Comparing base (3e39dce) to head (2821479).
Report is 3 commits behind head on 2.x.

Additional details and impacted files

@@            Coverage Diff            @@
##                2.x     #265   +/-   ##
=========================================
  Coverage     97.53%   97.53%           
  Complexity      468      468           
=========================================
  Files            74       74           
  Lines          1096     1096           
=========================================
  Hits           1069     1069           
  Misses           27       27           

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