@staticmethod
def interfaces_roles_change_and_tree_was_unsure_and_transitions_to_active(
    interface: 'TreeInterfaceUpstream'):
    """
        Interfaces roles change (NonRoot->Root) AND
        Tree was Unsure and transitions to Active state
        """
    interface.logger.debug(
        'interfaces_roles_change_and_tree_was_unsure_and_transitions_to_active'
        )
    interface.send_my_interest()
