'Set source interface for trap'

def set_trap_source_interface(self):

    cmd = ('snmp-agent    trap    source    %s    %s' % (self.interface_type, self.interface_number))
    self.updates_cmd.append(cmd)
    cmds = list()
    cmds.append(cmd)
    self.cli_load_config(cmds)
    self.changed = True
