presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/glue/GlueHiveMetastoreConfig.java/GlueHiveMetastoreConfig/setIamRole
class GlueHiveMetastoreConfig:    @Config("hive.metastore.glue.iam-role")
    @ConfigDescription("ARN of an IAM role to assume when connecting to the Hive Glue metastore")
    public GlueHiveMetastoreConfig setIamRole(String iamRole)
    {
        this.iamRole = Optional.ofNullable(iamRole);
        return this;
    }