Tests

feat: Add PipelineTool to streamline using Pipeline as Tools with Agent #18670

Job	Run time
format	18s
check-imports	29s
Unit / macos-latest	2m 56s
Unit / windows-latest	4m 24s
Unit / ubuntu-latest	2m 12s
lint	3m 34s
Integration / windows-latest	5m 47s
Integration / macos-latest	2m 17s
Integration / ubuntu-latest	3m 20s
Tests completed / Mark tests as completed	3s
	25m 20s

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