proxyUrl: URL of the proxy server. The default is an empty string. Optional.
maxRetries: The maximum number of times that the system attempts the operation. This parameter must be set to 1.
timeout: The amount of time, in milliseconds, that the system waits before abandoning the attempt to perform the operation. The default is 1200 ms. The values are 200 - 15000 ms. Optional.
labMode: Whether the Context Service is in lab mode. The default is false. Optional.