input: def StringComparator(string1: str, string2: str):
      """
      Create a class that receives two strings and has methods for comparing the strings 
      and returning whether they are equal, different, or similar up to a provided threshold.
      The class includes:
      - A method `is_equal` that returns True if both strings are identical.
      - A method `is_different` that returns True if both strings are not identical.
      - A method `is_similar` that returns True if the edit distance between the two strings
        is less than a specified threshold.
      
      >>> comparator = StringComparator('apple', 'apple')
      >>> comparator.is_equal()
      True
      >>> comparator.is_different()
      False
      >>> comparator.is_similar(threshold=0.5)
      True
      
      >>> comparator = StringComparator('apple', 'apples')
      >>> comparator.is_equal()
      False
      >>> comparator.is_different()
      True
      >>> comparator.is_similar(threshold=0.5)
      True
      
      >>> comparator = StringComparator('apple', 'mango')
      >>> comparator.is_similar(threshold=0.5)
      False
      """
output:     
      class StringComparator:
          def __init__(self, string1: str, string2: str):
              self.string1 = string1
              self.string2 = string2
          
          def is_equal(self) -> bool:
              return self.string1 == self.string2
          
          def is_different(self) -> bool:
              return self.string1 != self.string2
          
          def is_similar(self, threshold: float) -> bool:
              from difflib import SequenceMatcher
              similarity_ratio = SequenceMatcher(None, self.string1, self.string2).ratio()
              return similarity_ratio >= threshold
  