anchor.diff:  
   + Response 401 (application/json)
       + Attributes (Error)
  -        + i18n
  -            A comprehensive list of possible errors:
  -            - `NEED_AUTHENTICATION` if no valid session token has been supplied or the user for whom the token has been created does not exist (anymore)
  -
  -+ Response 404 (application/json)
  -    + Attributes (Error)
  -        + i18n
  +        + i18n (string) - a unique token representing above error description message; can be used for internationalization in frontends
  +            A comprehensive list of possible errors:
  +            - `NEED_AUTHENTICATION` if no valid session token has been supplied or the user for whom the token has been created does not exist (anymore)
  +
  ++ Response 404 (application/json)
  +    + Attributes (Error)
  +        + i18n (string) - a unique token representing above error description message; can be used for internationalization in frontends
               A comprehensive list of possible errors:
               - `INSTANCE_NOT_FOUND` if the requested instance does not exist in the database
               - `PATH_NOT_FOUND` if the requested path does not exist in the key database
   
   + Response 406 (application/json)
       + Attributes (Error)
  -        + i18n
  +        + i18n (string) - a unique token representing above error description message; can be used for internationalization in frontends
               A comprehensive list of possible errors:
               - `REQUEST_UNSUPPORTED_CONTENT_TYPE` if the submitted Content-Type is not `application/json` or `text/plain`
   
  
positive.code: 
  + Response 400 (application/json)
      + Attributes (Error)
          + i18n
              A comprehensive list of possible errors:
              - `NAME_MISSING` name not specified
  
  + Response 401 (application/json)
      + Attributes (Error)
          + i18n
              A comprehensive list of possible errors:
              - `NEED_AUTHENTICATION` if no valid session token has been supplied or the user for whom the token has been created does not exist (anymore)
  
  + Response 406 (application/json)
      + Attributes (Error)
          + i18n
              A comprehensive list of possible errors:
              - `REQUEST_UNSUPPORTED_CONTENT_TYPE` if the submitted Content-Type is not `application/json`
  
  
negative.code: 
  + Response 401 (application/json)
      + Attributes (Error)
          + i18n (string) - a unique token representing above error description message; can be used for internationalization in frontends
              A comprehensive list of possible errors:
              - `APIKEY_INVALID` api key invalid
  
  + Response 406 (application/json)
      + Attributes (Error)
          + i18n (string) - a unique token representing above error description message; can be used for internationalization in frontends
              A comprehensive list of possible errors:
              - `REQUEST_UNSUPPORTED_CONTENT_TYPE` if the submitted Content-Type is not `application/json`
  
  