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

@param jsonSchema JSON schema describing the result type

@see <a href="http://json-schema.org/">http://json-schema.org/</a>
kafka-base/kafka-base-sink/src/main/java/com/dtstack/flink/sql/sink/kafka/serialization/DTJsonRowSerializationSchema.java