protected static DataType requirePointerDataType(Program program) {
		DataType dtPointer = program.getDataTypeManager().getDataType("/pointer");
		if (dtPointer == null) {
			throw new IllegalArgumentException("No 'pointer' data type in " + program);
		}
		return dtPointer;
	}
Obtain the program's "pointer" data type, throwing an exception if absent

@param program the program
@return the "pointer" data type
Ghidra/Features/SystemEmulation/src/main/java/ghidra/pcode/emu/sys/UseropEmuSyscallDefinition.java