@Override
    public void open(Configuration parameters) {
        if (metricOption != null) {
            this.sinkMetricData = new SinkMetricData(metricOption, getRuntimeContext().getMetricGroup());
        }
    }
Constructs an AppendWriteFunction.

@param config The config options
inlong-sort/sort-flink/sort-flink-v1.15/sort-connectors/hudi/src/main/java/org/apache/inlong/sort/hudi/sink/append/AppendWriteFunction.java