creds are filled in like
` s3 {
# S3 credentials, used for read/write access by various SDK elements

    # default, used for any bucket not specified below
    key: "****"
    secret: "*****"
    region: "us-east-2"

    credentials: [
        # specifies key/secret credentials to use when handling s3 urls (read or write)
        {
                bucket: "********"
                key: "*********"
                secret: "**********"
        },
    ]
}
boto3 {
    pool_connections: 512
    max_multipart_concurrency: 16
}

} `