How to use the africastalking.AfricasTalkingGateway.AfricasTalkingGatewayException function in africastalking

def mobilePaymentB2CRequest(self, productName_, recipients_):
        parameters = {
            'username'    : self.username,
            'productName' : productName_,
            'recipients'  : recipients_
            }
        url      = self.getMobilePaymentB2CUrl()
        response = self.sendJSONRequest(url, json.dumps(parameters))
        if self.responseCode == self.HTTP_RESPONSE_CREATED:
            decoded = json.loads(response)
            if len(decoded['entries']) > 0:
                return decoded['entries']
            raise AfricasTalkingGatewayException(decoded['errorMessage'])
        raise AfricasTalkingGatewayException(response)

def deleteSubscription(self, phoneNumber_, shortCode_, keyword_):
        if len(phoneNumber_) == 0 or len(shortCode_) == 0 or len(keyword_) == 0:
            raise AfricasTalkingGatewayException("Please supply phone number, short code and keyword")
        
        url        = "%s/delete" %(self.getSmsSubscriptionUrl())
        parameters = {
            'username'     :self.username,
            'phoneNumber'  :phoneNumber_,
            'shortCode'    :shortCode_,
            'keyword'      :keyword_
            }
        response = self.sendRequest(url, parameters)
        if self.responseCode == self.HTTP_RESPONSE_CREATED:
            decoded = json.loads(response)
            return decoded
        raise AfricasTalkingGatewayException(response)

def uploadMediaFile(self, urlString_):
        parameters = {
            'username' :self.username, 
            'url'      :urlString_
            }
        url      = "%s/mediaUpload" %(self.getVoiceUrl())
        response = self.sendRequest(url, parameters)
        decoded  = json.loads(response)
        if decoded['errorMessage'] != "None":
            raise AfricasTalkingGatewayException(decoded['errorMessage'])

def sendAirtime(self, recipients_):
        parameters = {
            'username'   : self.username,
            'recipients' : json.dumps(recipients_) 
            }
        
        url      = "%s/send" %(self.getAirtimeUrl())
        response = self.sendRequest(url, parameters)
        decoded  = json.loads(response)
        responses = decoded['responses']
        if self.responseCode == self.HTTP_RESPONSE_CREATED:
            if len(responses) > 0:
                return responses
            raise AfricasTalkingGatewayException(decoded["errorMessage"])
        raise AfricasTalkingGatewayException(response)

def sendJSONRequest(self, urlString, data_):
        try:
            headers  = { 'Accept'       : 'application/json',
                         'Content-Type' : 'application/json',
                         'apikey'       : self.apiKey }

            resp = requests.post(urlString, data = data_, headers = headers)

        except requests.exceptions.Timeout as e:
            raise AfricasTalkingGatewayException(e.read())

        except requests.exceptions.RequestException as e:
            raise AfricasTalkingGatewayException(e.read())
 
        else:
            self.responseCode = resp.status_code
            response          = resp.text
            if self.Debug:
                print("Raw response: " + response)
 
            return response

def sendAirtime(self, recipients_):
        parameters = {
            'username'   : self.username,
            'recipients' : json.dumps(recipients_) 
            }
        
        url      = "%s/send" %(self.getAirtimeUrl())
        response = self.sendRequest(url, parameters)
        decoded  = json.loads(response)
        responses = decoded['responses']
        if self.responseCode == self.HTTP_RESPONSE_CREATED:
            if len(responses) > 0:
                return responses
            raise AfricasTalkingGatewayException(decoded["errorMessage"])
        raise AfricasTalkingGatewayException(response)

parameters = {
            'username'        : self.username,
            'productName'     : productName_,
            'phoneNumber'     : phoneNumber_,
            'currencyCode'    : currencyCode_,
            'providerChannel' : providerChannel_,
            'amount'          : amount_,
            'metadata'        : metadata_
            }
        url      = self.getMobilePaymentCheckoutUrl()
        response = self.sendJSONRequest(url, json.dumps(parameters))
        if self.responseCode == self.HTTP_RESPONSE_CREATED:
            decoded = json.loads(response)
            if decoded['status'] == 'PendingConfirmation':
                return decoded['transactionId']
            raise AfricasTalkingGatewayException(decoded['description'])
        raise AfricasTalkingGatewayException(response)

'username'        : self.username,
            'productName'     : productName_,
            'phoneNumber'     : phoneNumber_,
            'currencyCode'    : currencyCode_,
            'providerChannel' : providerChannel_,
            'amount'          : amount_,
            'metadata'        : metadata_
            }
        url      = self.getMobilePaymentCheckoutUrl()
        response = self.sendJSONRequest(url, json.dumps(parameters))
        if self.responseCode == self.HTTP_RESPONSE_CREATED:
            decoded = json.loads(response)
            if decoded['status'] == 'PendingConfirmation':
                return decoded['transactionId']
            raise AfricasTalkingGatewayException(decoded['description'])
        raise AfricasTalkingGatewayException(response)

def deleteSubscription(self, phoneNumber_, shortCode_, keyword_):
        if len(phoneNumber_) == 0 or len(shortCode_) == 0 or len(keyword_) == 0:
            raise AfricasTalkingGatewayException("Please supply phone number, short code and keyword")
        
        url        = "%s/delete" %(self.getSmsSubscriptionUrl())
        parameters = {
            'username'     :self.username,
            'phoneNumber'  :phoneNumber_,
            'shortCode'    :shortCode_,
            'keyword'      :keyword_
            }
        response = self.sendRequest(url, parameters)
        if self.responseCode == self.HTTP_RESPONSE_CREATED:
            decoded = json.loads(response)
            return decoded
        raise AfricasTalkingGatewayException(response)