PV7 will supposedly be 5270mm (L) x 2065 mm (W) x 2120 mm (H)

You said it’s not runtime type checking but then switched to “strict type checking” - those aren’t the same. Other person has it right, it has runtime type checking. The type checking happens when running your code. I don’t think that’s particularly useful, it’s pretty much sugar on top of what would throw an error anyway.