The type definition for FreePreview configuration
deviceId:Null<String>
Id of the device
localInterval:Null<Int>
TODO
localPrefix:Null<String>
mvpdId:Null<String>
Multichannel video programming distributor id
postInterval:Null<Int>
serverUrl:Null<String>
timeAllowed:Null<Int>
The amount of time a user can view content without signing in