liquibase-core/src/main/java/liquibase/parser/core/ParsedNode.java
public ParsedNode addChild(String namespace, String nodeName, Object value) throws ParsedNodeException {
        addChild(createNode(namespace, nodeName).setValue(value));
        return this;
    }
public ParsedNode addChild(String namespace, String nodeName, Object value) throws ParsedNodeException {
        addChild(createNode(namespace, nodeName).setValue(value));
        return this;
    }
Convenience method to add a new ParsedNode with the passed namespace/name and value