Task $1$ Define a Python dataclass $($you must use dataclass not class$)$ named Product to represent product information. Each product should have the following attributes:

$-$ id $($int$)$: A unique identifier for the product.

$-$ name $($str$)$: The name of the product.

$-$ category $($str$)$: The category to which the product belongs.

$-$ price $($float$)$: The price of the product.

$-$ stock $($int$)$: The number of units available in stock.

Task $2$ Write a Python script that performs the following actions:

$1.$ Reads product data from a file named products.txt$.$ Each line in the file follows this format:

id$,$name, category,price,stock

Example data:

$101,$Apple, Fruit, $0\mathrm{.}5,100$

$102,$ Banana, Fruit, $0\mathrm{.}2,150$

$103,$Milk, Dairy, $1\mathrm{.}2,50$

$2.$ Populates a dictionary where the key is the product's id$,$ and the value is a Product object created from the file data.

Task $3$ Implement the following functionalities:

$-$ Total stock value per category: Compute and print the total stock value for each category, where the stock value is defined as price multiplied by stock. This function should take a dictionary as parameter and

$-$ Most expensive product: Identify and display the product with the highest price.

$-$ Category with the highest stock: Determine which category has the most items in stock $($calculated as the sum of the stock for all products in the category$).$

All functions in Task $3$ should take a single parameter $-$ a Python dictionary. Each function in this task must required information like presented in sample output.