anchor.diff:      + api_id: 1 (string)
   
   + Response 200 (application/json)
  -    + Attributes (SuccessResponse)
  -        + meta (ResponseMeta)
  +    + Attributes (Response_OK)
  +        + meta (Response__Meta)
               + code: 200
           + data (API)
   
  
positive.code: 
  + Request (application/json)
      + Attributes (Plugin_Proxy)
  
  + Response 201 (application/json)
      + Attributes (SuccessResponse)
          + meta (ResponseMeta)
              + code: 201
          + data (Plugin_Proxy)
  
  ### Change Proxy Config [PUT]
  
  
negative.code:     + Attributes (API)
  
  + Response 201 (application/json)
      + Attributes (Response_OK)
          + meta (Response__Meta)
              + code: 201 (number)
          + data (Consumer)
  
  ## Consumer [/consumers/{external_id}]
  