QueryOptions 
    data class QueryOptions(val extras: Map<String, String> = emptyMap(), val customEndpoint: Uri? = null, val trackingId: String? = null)
Options related to the API request.
Parameters
extras
A collection of key-value pairs that should be included in the request.
customEndpoint 
The server to send the request to.
trackingId 
An ID for tracking this client's requests.