Fahrenheit to Celsius Converter

Task: Write a function fahrenheit$\_$to$\_$celsius$($fahrenheit$)$ that converts a temperature given in Fahrenheit to Celsius. The formula is $C=(F-32)*$

$\frac{5}{9}.$

$[]$ def fahrenheit$\_$to$\_$celsius$($fahrenheit$)$:

# your implementation here

pass

# # Student Test Cases

# assert fahrenheit$\_$to$\_$celsius $(32)==0$

# assert fahrenheit$\_$to$\_$celsius $(212)==100$

# assert fahrenheit$\_$to$\_$celsius$(98\mathrm{.}6)==37$

$*$ For each of the functions below, at least two examples are provided to test your functions.

functions will be tested both with examples provided in each question and with extra examples.

Each function has to be documented with docstrings $.$ In particular, each function has to have docstrings that specify: a$.$ description about what the function does $($while mentioning parameter names$)$ b$.$ preconditions, if any.