Write an uml diagramm

package decorator

trait Pizza:

def diameter: Int

def price: BigDecimal

class Margherita extends Pizza:

override def diameter: Int $=28$

override def price: BigDecimal $=9$

class Funghi extends Margherita:

override def price: BigDecimal $=10$

class Verdura extends Margherita:

override def price: BigDecimal $=11\mathrm{.}5$

@main def Pizzashop$()$: Unit $=$

$//$ pizza Verdura with extra cheese

val p$1$: Pizza $=$ new ExtraCheese$($new Verdura$)$

$//$ pizza Funghi family size with vegan cheese

val p$2$: Pizza $=$ new VeganCheese$($new FamilyPizza$($new Funghi$))$

println$($s$"$Price of a pizza verdura with extra cheese is $$\{$p$1.$price$\}")$

println$($s$"$Price of a pizza funghi family size with vegan cheese is $$\{$p$2.$price$\}")$

trait PizzaDecorator extends Pizza $\{$

protected val pizza: Pizza

$\}$

class ExtraCheese$($val pizza: Pizza$)$ extends PizzaDecorator $\{$

override def diameter: Int $=$ pizza.diameter

override def price: BigDecimal $=$ pizza.price $+2$

$\}$

class VeganCheese$($val pizza: Pizza$)$ extends PizzaDecorator $\{$

override def diameter: Int $=$ pizza.diameter

override def price: BigDecimal $=$ pizza.price $+1\mathrm{.}5$

$\}$

class ExtraOnions$($val pizza: Pizza$)$ extends PizzaDecorator $\{$

override def diameter: Int $=$ pizza.diameter

override def price: BigDecimal $=$ pizza.price $+1$

$\}$

class FamilyPizza$($val pizza: Pizza$)$ extends PizzaDecorator $\{$

override def diameter: Int $=42$

override def price: BigDecimal $=$ pizza.price $*2$

$\}$