anchor.diff:      
               {
                   "status": 200,
  -                "messages" : {
  +                "messages" : [ 
  +                {
                       "type": "success",
                       "description": "Created.Collaborator",
                       "message": "Collaborator successfully created"
  -                }
  -            
  -            }
  +                }]
  +            
  +            }
  +            
  ++ Response 409 (application/json)
  +
  +    + Body
  +    
  +            {
  +                "status": 409,
  +                "messages" : [
  +                {
  +                        "type": "error",
  +                        "description": "AlreadyRegistered.Collaborator",
  +                        "message": "Collaborator already is registered" 
  +                }] 
  +            }
  +
               
   ## Collaborator [/api/client/{collaboratorId}]
   
  
positive.code:                     "message": "Client successfully created"
                  }]
              }
  
  ## Client [/api/client/{clientId}]
  
  
negative.code: 
  + Response 200 (application/json)
      + Attributes (Collaborator)
  
  + Response 404 (application/json)
  
      + Body
      
              { 
              "status": 404,
              "messages": [
                  { 
                      "type": 'error',
                      "description": 'NotFound.Collaborator',
                      "message": 'Collaborator not found' 
                  }] 
              }
  
  ### Delete an collaborator [DELETE]
  
  