@Override
    public int hashCode() {
        return Objects.hash(typeInfo);
    }
Creates a JSON serialization schema for the given type information.

@param typeInfo The field names of {@link Row} are used to map to JSON properties.
kafka-base/kafka-base-sink/src/main/java/com/dtstack/flink/sql/sink/kafka/serialization/JsonTupleSerializationSchema.java