input: Write a python function to compare two strings and return if they are the same.
  assert StrComparer("hello", "hello").is_same() == True
  assert StrComparer("hello", "world").is_same() == False
  assert StrComparer("test", "test1").is_same() == False
output: class StrComparer:
      def __init__(self, str1, str2):
          self.str1 = str1
          self.str2 = str2
  
      def is_same(self):
          return self.str1 == self.str2