code: def credentials(self, area_uuid):
          
          response = self._make_request("post", path="/area/{uuid}/credentials".format(uuid=area_uuid))
          return response.json()
docs: Get AWS credentials required to directly upload files to Upload Area in S3
  
          :param str area_uuid: A RFC4122-compliant ID for the upload area
          :return: a dict containing an AWS AccessKey, SecretKey and SessionToken
          :rtype: dict
          :raises UploadApiException: if credentials could not be obtained