This example shows connecting via AWS_MSK_IAM and printing metadata
information about your MSK cluster.
By default, this will use a credential file at either
AWS_SHARED_CREDENTIALS_FILE, if the environment variable exists, or at
$HOME/.aws/credentials. Alternatively, keys can be provided with the
AWS_ACCESS_KEY and AWS_SECRET_KEY environment variables.
As well, this will default to the profile specified by the AWS_PROFILE
environment variable if it exists, otherwise to default.
Seed brokers are required; to find them, navigate to your
MSK cluster,
click "View client information", and then copy & paste the IAM bootstrap
servers for the -brokers flag (note that this will have a trailing newline,
which is fine if you run this with go run . -brokers <paste>.
-brokers specifies the seed brokers of your MSK cluster