Reverse string in Python

Function Definition:
reverse_string is a function that takes a string s as input and returns its reverse using Python's slicing syntax.
Slicing to Reverse:
s[::-1] is a slicing operation that creates a reversed copy of the original string s.
The [::-1] part means to start from the end of the string and move backward with a step of -1.
Applying the Function:
reversed_string is assigned the result of applying the reverse_string function to original_string.