Schedules search and load of given MIB modules.

        Parameters
        ----------
        *modNames:
            one or more MIB module names to load up and use for MIB
            variables resolution purposes.

        Returns
        -------
        : :py:class:`~pysnmp.smi.rfc1902.ObjectIdentity`
            reference to itself

        Examples
        --------
        >>> ObjectIdentity('SNMPv2-MIB', 'sysDescr').loadMibs('IF-MIB', 'TCP-MIB')
        ObjectIdentity('SNMPv2-MIB', 'sysDescr')
        >>>

def loadMibs(self, *modNames):
        """Schedules search and load of given MIB modules.

        Parameters
        ----------
        *modNames:
            one or more MIB module names to load up and use for MIB
            variables resolution purposes.

        Returns
        -------
        : :py:class:`~pysnmp.smi.rfc1902.ObjectIdentity`
            reference to itself

        Examples
        --------
        >>> ObjectIdentity('SNMPv2-MIB', 'sysDescr').loadMibs('IF-MIB', 'TCP-MIB')
        ObjectIdentity('SNMPv2-MIB', 'sysDescr')
        >>>
        """
        if self._modNamesToLoad is None:
            self._modNamesToLoad = modNames

        else:
            self._modNamesToLoad += modNames

        return self