anchor.diff:          label: Echo Value
           description: 'Configure a value to repeatedly echo'
         - reference: .properties.sleep_value
  -        label: Sleep Value 
  +        label: Sleep Value
           description: 'Time to sleep between echoes'
         - reference: .properties.exit_value
  -        label: Exit Value 
  +        label: Exit Value
           description: 'Configure a value to echo at exit'
   
   property_blueprints:
  
positive.code:     type: string
      configurable: true
      optional: false
    - name: sleep_value
      type: integer
      configurable: true
  
negative.code:     type: string
      configurable: true
      optional: false
      default: '0'
  
  runtime_configs:
    - name: dummy
  