^^^

Basically what I am asking is how can I specify

function love.load()
    ListOfRectangles = {}
end

local function createRect()
    local rect = {}
    rect.x = 100
    rect.y = 100
    rect.width = 70
    rect.height = 90
    rect.speed = 100

that ListOfRectangles is an array that contains 5 number elements with their fields? Like this in python:

from pydantic import BaseModel
from typing import List

class Rectangle(BaseModel):
   x: int
   y: int
   width: int
   height: int
   speed: int

ListOfRectangles: List[Rectangle] = []

thanks for any help.