Please solve the programming task below using a self-contained code snippet in a markdown code block.

Given a string s and an integer k, return true if s is a k-palindrome.
A string is k-palindrome if it can be transformed into a palindrome by removing at most k characters from it.
 
Please complete the following python code precisely:
```python
class Solution:
    def isValidPalindrome(self, s: str, k: int) -> bool:
```