Empty AsyncAPI with schemas generate no payloads

[jonaslagoni]

asyncapi: 3.0.0
info:
  title: Account Service
  version: 1.0.0
  description: This service is in charge of processing user signups
components:
  schemas:
    SimpleObject:
      type: object
      properties:
        type:
          const: 'SimpleObject' 
        displayName:
          type: string
          description: Name of the user
        email:
          type: string
          format: email
          description: Email of the user