public AddressValue defineAddress(String name, Program program) {
		checkDup(name);
		AddressValue value = new AddressValue(name, null, program);
		valuesMap.put(name, value);
		return value;
	}
Defines a value of type {@link Address} with no default value.
@param name the name for this value
@param program the program used to get an {@link AddressFactory} for parsing addresses
@return the new AddressValue that was defined.
Ghidra/Features/Base/src/main/java/ghidra/features/base/values/GhidraValuesMap.java