How to get a specific specific key from the AWS Secret Manager external credentials

When getting secrets from AWS Secret Manager we get the whole secrets which can have multiple key/value pairs. How can we get a specific key
https://github.com/ansible/awx-plugins/blob/21173c4ed168cae31923d957365f1b83f0386946/src/awx_plugins/credentials/aws_secretsmanager.py#L36

For Hashi Vault we can get to a secret key https://github.com/ansible/awx-plugins/blob/21173c4ed168cae31923d957365f1b83f0386946/src/awx_plugins/credentials/hashivault.py#L207

Are we missing this in AWS Secret Manager?

Start with src/awx_plugins/credentials/aws_secretsmanager.py at the linked line and compare its secret retrieval with src/awx_plugins/credentials/hashivault.py around line 207. Trace how external credential values are selected, then verify that AWS Secrets Manager credentials can return one requested key from a multi-key secret rather than the whole secret.

Written by the indexing model from the issue text.