@Override
	public IntPropertyMap getIntPropertyMap(String propertyName) {
		PropertyMapDB<?> pm = propertyMapCache.get(propertyName);
		if (pm == null || pm instanceof IntPropertyMap) {
			return (IntPropertyMap) pm;
		}
		throw new TypeMismatchException("Property " + propertyName + " is not int type");
	}
Returns the IntPropertyMap associated with the given name.
@param propertyName the name of the property to retrieve.
@throws TypeMismatchException if a propertyMap named propertyName
exists but is not an IntPropertyMap.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/properties/DBPropertyMapManager.java