The following code works to send a message but when it arrives, it displays the text 'VERIFY' for a sender id. How do I specific a sender ID? I think it's done with the message attributes but I cannot figure out the syntax.
session = boto3.session.Session(profile_name='Credentials',region_name='us-east-1')
theMessage='Now is the time for all good people to come to the aid of their party'
senderID='Godzilla'
snsclient = session.client('sns')
response = snsclient.publish(PhoneNumber='+84932575571', Message=theMessage)
pp = pprint.PrettyPrinter(indent=4)
print(pp.pprint(response))