Webservice/API problem with return data(contained data from ->get)

[GalazKit]

Hi, 
I have a problem regarding api processing data while calling : $webService->get(), and then I select the data I want to return with a return, Api adds my entire result(HTTP REQUEST HEADER, HTTP RESPONSE HEADER, RETURN HTTP BODY).

My return, instead of the necessary data, contains all the operations performed in the webservice and their results.

Below I've presented the return, the data I want to send in the return starts only from 6839 lines, the rest is an operation in the api.

Does anyone have a solution to not add everything, just my data ?