I made my own smart home skill that has Alexa.PowerController interface. I also made lambda function to handle requests and responses. But I need to check that skill really works with light bulb or not? I have Wipro smart bulb. I have it's endpointId, IP, and MAC address. I tried to put same endpointID in my lambda function, but that doesn't work. What should I do to make a connectivity between Wipro smart bulb and AWS lambda function?