input: 
  class IsInstanceOfSongClass:
      """
      Create a class that verifies if an object is an instance of the Song class.
      The Song class has the following structure:
      class Song:
          def __init__(self, title, artist):
              self.title = title
              self.artist = artist
    
          def __str__(self):
              return f'Title: {self.title}\nArtist: {self.artist}'
      
          def __eq__(self, other):
              return self.artist == other.artist and self.title == other.title
  
          def length(self):
              return len(self.title)
  
      This function takes an object as input and returns True if the object is
      an instance of the Song class, otherwise returns False.
      """
      def is_instance(obj) -> bool:
          return isinstance(obj, Song)
  
  # Test cases
  song1 = Song("Bohemian Rhapsody", "Queen")
  song2 = "Not a song object"
  
  print(IsInstanceOfSongClass.is_instance(song1))  # Output: True
  print(IsInstanceOfSongClass.is_instance(song2))  # Output: False
  
output:     class Song:
          def __init__(self, title, artist):
              self.title = title
              self.artist = artist
    
          def __str__(self):
              return f'Title: {self.title}\nArtist: {self.artist}'
      
          def __eq__(self, other):
              return self.artist == other.artist and self.title == other.title
  
          def length(self):
              return len(self.title)