code: def _get(self, api_call, params, method='GET', file_=None):
          
          url = self._build_url(api_call)
  
          if method == 'GET':
              request_args = {'params': params}
          else:
              if self.password_hash is None:
                  self._build_hash_string()
  
              # Set login
              params['login'] = self.username
              params['password_hash'] = self.password_hash
              request_args = {'data': params, 'files': file_}
  
          # Do call
          return self._request(url, api_call, request_args, method)
docs: Function to preapre API call.
  
          Parameters:
              api_call (str): API function to be called.
              params (dict): API function parameters.
              method (str): (Defauld: GET) HTTP method 'GET' or 'POST'
              file_ (file): File to upload.