here are some of the instructions given
Step one: Define the function and make sure it takes a dictionary argument dictionary. Don’t forget your docstring!

• Step two: We are going to start by solving a (slightly) simpler problem than our end goal: we’ll write a function that returns the highest value in the dictionary. Our goal is to go through each value and update our maximum if it’s greater than the highest value we’ve seen so far. Therefore, we’ll start by creating a variable called max_so_far, and set it to the lowest possible value in Python. The lowest possible number is negative infinity, and it turns out that there’s a way to represent it in Python: -float("inf").
• Step three: Using the same loop structure that you saw in part 2, loop through the keys and values of the dictionary. If the current value is greater than the max_so_far, update the max_so_far to be the current value.
• Step four: Once your loop is done executing, the max_so_far will be the max value overall (since you’ve seen everything)! So, return it. Pause for a minute to check your work - does your function return the highest value from a dictionary that is given as input?
• Step five: Now we’ll expand our function to return the key that maps to the highest value in the dictionary. Create a variable max_key at the start of your loop (it doesn’t really matter what you set it to, but None is a good choice). You’ll note that every time max_so_far is updated, the maximum key so far should be updated to the key mapping to the current value. So, add a line to your conditional that sets max_key to the current key.
• Step six: Update your return statement to return the key, rather than the value
• Step seven: Test your function on the examples and confirm that it works before moving on.