How to pass credentials to connect remote fluentD aggregator

I have a fluentD aggregator running in AWS with configuration like this

```

@type forward
port 24224

self_hostname fluentd-aggregator
shared_key test_key

```
I didn't find any examples for passing self_hostname and shared_key in FluentLogger
How do I pass credentials from FluentLogger ?

Start by checking FluentLogger's connection and security configuration, along with any existing usage examples, to determine whether self_hostname and shared_key are supported. Done means documenting the supported way to pass these credentials to a remote fluentd aggregator, with an example matching the configuration in the issue.

Written by the indexing model from the issue text.