old_contents: import requests
  
  from .resources.batches import Batches
  from .resources.jobs import Jobs
  
  DEFAULT_API_ROOT = 'http://app.spare5.com/partner/v2'
  
  
  class Spare5Client(object):
      def __init__(self, username, token, api_root=DEFAULT_API_ROOT):
          super(Spare5Client, self).__init__()
  
          self.api_root = api_root
          self.username = username
          self.token = token
  
          self.batches = Batches(self)
  
      def _make_request(self, verb, *args, **kwargs):
          kwargs.update({
              'auth': (self.username, self.token)
          })
          response = requests.request(verb, *args, **kwargs)
          return response.json()
  
      def _get(self, url, **kwargs):
          return self._make_request('get', url, **kwargs)
  
      def _post(self, url, data, **kwargs):
          return self._make_request('post', url, data=data, **kwargs)
  
      def _put(self, url, data, **kwargs):
          return self._make_request('put', url, data=data, **kwargs)
  
      def _delete(self, url, **kwargs):
          return self._make_request('delete', url, **kwargs)
  
new_contents: import requests
  
  from .resources.batches import Batches
  from .resources.jobs import Jobs
  
  DEFAULT_API_ROOT = 'http://app.spare5.com/partner/v2'
  
  
  class Spare5Client(object):
      def __init__(self, username, token, api_root=DEFAULT_API_ROOT):
          super(Spare5Client, self).__init__()
  
          self.api_root = api_root
          self.username = username
          self.token = token
  
          self.batches = Batches(self)
  
      def _make_request(self, verb, *args, **kwargs):
          kwargs.update({
              'auth': (self.username, self.token),
              'headers': {
                  'content-type': 'application/json',
              },
          })
          response = requests.request(verb, *args, **kwargs)
          return response.json()
  
      def _get(self, url, **kwargs):
          return self._make_request('get', url, **kwargs)
  
      def _post(self, url, data, **kwargs):
          return self._make_request('post', url, data=data, **kwargs)
  
      def _put(self, url, data, **kwargs):
          return self._make_request('put', url, data=data, **kwargs)
  
      def _delete(self, url, **kwargs):
          return self._make_request('delete', url, **kwargs)
  
subject: Update to specify content-type header