Defines the interface that should be implemented by the application to receive KeyMaster keep alive Responses.

The KeymasterPollResponseListener needs to be added to the caplin.streamlink.StreamLinkFactory create method in order to receive callbacks.

Typically an application would notify the user when onKeymasterError is called and ask them to sign in again.

A trivial implementation would be as follows :

caplin.streamlink.StreamLinkFactory.create({
        liberator_urls: "rttp://liberator1:8080",
        keymaster_url: "keymaster",
        keymaster_poll_url: "keymasterpoll",
        keymaster_poll_response_listener : {
                onKeymasterError: function (reason) {
                        console.log("KeyMaster Failed due to : " + reason);
                },
                onKeymasterResponse: function (response) {
                        console.log("KeyMaster Success. Response Message : " + response);
                }
        }
});