Send NX-API JSON request to the NX-OS device.

def request(self, type, command_list):
        '''
        Send NX-API JSON request to the NX-OS device.
        '''
        req = self._build_request(type, command_list)
        if self.nxargs['connect_over_uds']:
            self.connection.request('POST', req['url'], req['payload'], req['headers'])
            response = self.connection.getresponse()
        else:
            response = self.connection(req['url'],
                                       method='POST',
                                       opts=req['opts'],
                                       data=req['payload'],
                                       header_dict=req['headers'],
                                       decode=True,
                                       decode_type='json',
                                       **self.nxargs)

        return self.parse_response(response, command_list)