Write a function called count$\_$hyphens that requires no parameters performs the following algorithm:

Ask the user for a string using the console $($terminal$)$

Required prompt: 'Please enter a string:$\text{'}$

Count the number of hyphens in the string

a hypen is this $\text{'}-\text{'}$

Return an integer that is the number of hyphens in the string printing to the console is not the same thing as returning a value $($even though it looks that way in the output examples$)$

$1$ def count$\_$hyphens$()$ int:

$2$ # YOUR IMPLEMENTATION

Examples of the function running should appear as follows:

$>$count$\_$hypens $()$

Please enter a string: Hello$-$World

What is the purpose, parameters and return in this question?