Not recommended for use on large lists due to time
            complexity, but it works. Use with caution.

            -> #int number of occurences of @value

def count(self, value):
        """ Not recommended for use on large lists due to time
            complexity, but it works. Use with caution.

            -> #int number of occurences of @value
        """
        cnt = 0
        for x in self:
            if x == value:
                cnt += 1
        return cnt