<problem>
Write a function `cookiePurchase(cookies: float) -> dict` that takes in the number of cookies a customer wants to purchase and returns a dictionary with the total price of the cookies and the discount that the customer will receive. The price of a cookie is $1.75. If the customer purchases more than 10 cookies and the number of cookies is a multiple of 10, then the customer will receive a 10% discount. The function should return a dictionary with the keys `price` and `discount`. The `discount` key should map to the amount of the discount and the `price` key should map to the total price of the cookies after the discount is applied. Assume that the customer will always purchase a positive number of cookies.
## Example Cases:
```
cookiePurchase(2) => {'discount': 0.0, 'price': 3.5}
cookiePurchase(70) => {'discount': 12.25, 'price': 110.25}
cookiePurchase(22) => {'discount': 0.0, 'price': 38.5}
cookiePurchase(10) => {'discount': 0.0, 'price': 17.5}
cookiePurchase(20) => {'discount': 3.5, 'price': 31.5}
```
</problem>
<bug_code>
1. def cookiePurchase(cookies):
2.    price = cookies * 1.75
3.    discount = 0
4.    if cookies > 10 and cookies / 10 == 0:
5.        discount = price * 0.1
6.        price = price - discount
7.    return {"discount": discount, "price": price}
</bug_code>
<bug_desc>
On line 4, the function checks if the quotient `cookies` and 10 is 0 instead of checking whether `cookies` is a multiple of 10.
</bug_desc>
<bug_fixes>
On line 4, replace `/` with `%` and on line 4.
</bug_fixes>
<unit_tests>
assert cookiePurchase(2) == {'discount': 0, 'price': 3.5}
assert cookiePurchase(70) == {'discount': 12.25, 'price': 110.25}
assert cookiePurchase(22) == {'discount': 0, 'price': 38.5}
assert cookiePurchase(10) == {'discount': 0, 'price': 17.5}
assert cookiePurchase(20) == {'discount': 3.5, 'price': 31.5}
</unit_tests>
<stu_desc>

</stu_desc>
<dialogue>
User: Hi! I'm having a problem with my code
	<alt>Hi! My code seems to sometimes give answers that are very off.
Assistant: What seems to be the issue?
	<alt>Can you walk me through your function line by line?
	<alt>Let's start with a simple warm-up question. How do you check if a number is even?
	<alt>Let's start with a simple warm-up question. How do you check if a number is divisible by 10?
User: My outputs seem to be wrong sometimes, but I don't notice anything wrong with my code.
Assistant: Ok, let's assume that `cookies` is 70. Can you walk me through what your code does line by line?
	<alt>Let's use a debugger to step through your code. Let's run `cookiePurchase(70)` and see what happens. Is `70` divisible by 10? and what is the value of `discount` after line 4?
	<alt>Okay. Let's try 70 for `cookies`. 70 is greater than 10 and divisible by 10, so what should the value of `discount` be after line 4?
	<alt>Okay. Let's add a print statement to track the truth value of the condition on line 4. What is the value of `cookies / 10` when `cookies` is 70?
User: First, I calculate the price based on the number of cookies. Then, I check whether I should apply a discount by checking the number of cookies and dividing by 10 to determine whether that number is a multiple of 10. Then I apply the discount if it is relevant. So for 70 cookies, I would calculate the price to be 70 * 1.75 = 122.5. Then I would check whether 70 > 10 which is True but 70 / 10 == 0, is false, so I would not apply a discount and would return the full price of 122.5. That's incorrect.
Assistant: Hm... Are you sure that dividing by 10 is the right way to check whether a number is a multiple of 10?
	<alt>What operator should you use to check whether a number is a multiple of 10?
	<alt>Where can you learn more about Python operators?	
User: Hm... I think `/` regular division does not check whether a number is a multiple of 10. I am not sure what operator I should use to check whether a number is a multiple of 10...
Assistant: Let's take a look at the Python documentation to see if there is a different operator that does what you want.
	<alt>Where can you learn more about arithmetic operators in Python?
User: Oh, interesting. The modulus operator seems to fit. I'll modify my code and see if it works. It looks like it does!
<code>
 def cookiePurchase(cookies):
    price = cookies * 1.75
    discount = 0
    if cookies > 10 and cookies % 10 == 0:
        discount = price * 0.1
        price = price - discount
    return {"discount": discount, "price": price}

</code>
Assistant: Great! Glad to help.
User: Thank you very much!
</dialogue>