Help me apply AsyncAPI to the material below.
Reader and existing knowledge: [describe]
Task and desired outcome: [describe]
Use these principles: Identify the application perspective and operation direction.; Describe channels, message payloads, and relevant protocol bindings.; State delivery and processing assumptions separately when they matter..
Preserve source facts, identifiers, quantities, conditions, exceptions, and uncertainty.
Separate supplied facts from assumptions. Ask for missing information instead of inventing it.
Explain your representation choices and provide a review checklist. Do not claim formal compliance or correctness from formatting alone.
Material: [paste only information you are permitted to share]