def patch(self, restApi, data={}, silentMode=False):
        """
        Description
           A HTTP PATCH function to modify configurations.
        
        Parameters
           restApi: The REST API URL.
           data: The data payload for the URL.
           silentMode: True or False.  To display URL, data and header info.
        """

        if silentMode == False:
            self.logInfo('\n\tPATCH: {0}\n\tDATA: {1}\n\tHEADERS: {2}'.format(restApi, data, self.jsonHeader))

        try:
            response = requests.patch(restApi, data=json.dumps(data), headers=self.jsonHeader, verify=self.verifySsl)
            if silentMode == False:
                self.logInfo('\tSTATUS CODE: %s' % response.status_code, timestamp=False)

            if not str(response.status_code).startswith('2'):
                self.logError('Patch error:')
                raise IxLoadRestApiException('http PATCH error: {0}\n'.format(response.text))
            return response

        except requests.exceptions.RequestException as errMsg:
            raise IxLoadRestApiException('http PATCH error: {0}\n'.format(errMsg))