anchor.diff:        - reference: .web_server.example_string
           label: Example string
           description: 'Configure a property of type string'
  +      - reference: .web_server.example_cron
  +        label: Example cron schedule
  +        description: 'Configure a property of type string with the must_be_cron_schedule constraint'
         - reference: .web_server.example_string_with_placeholder
           label: Example string containing Placeholder text
           description: 'Optional field. Configuration not necessary'
  
positive.code:         error_message: 'This name cannot contain special characters.'
        - must_match_regex: '\A[^0-9]*\z'
          error_message: 'This name cannot contain digits.'
      - name: example_migrated_integer
        type: integer
        configurable: true
  
negative.code:               secret: (( .web_server.generated_secret_to_migrate_to_credhub_<%= major_and_minor_version %>.value ))
            configured:
              string: (( .web_server.example_string.value ))
              cron_schedule: (( .web_server.example_cron.value ))
              integer: (( .web_server.example_migrated_integer.value ))
              boolean: (( .web_server.example_boolean.value ))
              dropdown: (( .web_server.example_dropdown.value ))
  