This function is the same as the other Python Hello World function in this repository but it also
launches a CloudFormation template that republishes messages from a core onto a shared topic
hello/world. If you launch this function on multiple cores you should expect to see messages
showing up on hello/world for each core.
The messages look like this:
{
"message": "Hello World received from AWS_GREENGRASS_GROUP_NAME"
}Where AWS_GREENGRASS_GROUP_NAME is the name of each group.