@classmethod
def get(cls, session, parent=None):
    """Gets all of the System controllers from the APIC.
        This information comes from
        the APIC 'eqptBoard' class.

        If parent is specified, it will only get system
        controllers that are children of the the parent.
        The system controlles will also be added as children
        to the parent Node.

        :param session: APIC session
        :param parent: parent Node

        :returns: list of Systemcontrollers
        """
    return cls.get_obj(session, cls._get_apic_classes(), parent)
