Problem 1B (Parentheses Validation) A string is considered to have valid parentheses if there are an equal number of opening/closing brackets and each closing bracket -e.g., or matches the most recent, unmatched opening bracket-e.g., or For example: s valid is valid 000 is valid is invalid Checking the validity of parentheses is important in verifying the validity of programming code and mathematical statements. Create a new Python file called validator.py with a single function