Is Agent-to-Agent (A2A) communication supported on the Agent Engine?

I have multiple agents deployed on the Agent Engine (Agent A and Agent B).
My use case requires a2a communication between them.

Scenario:
Agent A needs to trigger Agent B, and in some flows, Agent B needs to trigger Agent A.

Check the repository's documentation and code samples for any existing A2A communication patterns. Look for configuration files, agent deployment examples, and protocol specifications. Determine if the Agent Engine supports inter-agent triggers or if this requires a new feature implementation.

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