presto-elasticsearch/src/main/java/io/prestosql/elasticsearch/AwsSecurityConfig.java/AwsSecurityConfig/setUseInstanceCredentials
class AwsSecurityConfig:    @Config("elasticsearch.aws.use-instance-credentials")
    public AwsSecurityConfig setUseInstanceCredentials(boolean use)
    {
        this.useAwsInstanceCredentials = use;
        return this;
    }