presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/glue/GlueHiveMetastoreConfig.java/GlueHiveMetastoreConfig/getAwsCredentialsProvider
class GlueHiveMetastoreConfig:    public Optional<String> getAwsCredentialsProvider()
    {
        return awsCredentialsProvider;
    }