api.v0alpha.ScheduleCallBackSettings(ScheduleCallBackSettings)

{
    "allow_callback_scheduling": true,
    "allow_scheduled_callback_calling": true,
    "allow_automatic_callback_retrieval_mode": true,
    "allow_default_callback_routing": true,
    "callbacks_retrieval_mode_settings": "string",
    "default_callback_routing_settings": "string",
    "callbacks_service_id": "string",
    "has_custom_caller_id": true,
    "default_caller_id": "string",
    "allow_scheduled_callback_calendar": true
}