private String getValue(String name, String type) {
		String value = map.get(name);
		if (value == null) {
			throw new XmlAttributeException("Missing " + type + " value for attribute \"" + name +
				"\"");
		}
		return value;
	}
Convenience class that converts XML attributes into typed property values.
Ghidra/Framework/Generic/src/main/java/generic/constraint/ConstraintData.java