input: 
  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)
  
  
  Question: How would you modify the `length` method to return the length of the artist's name instead of the song's title? Put your code as a direct answer below:
  
  
  class ModifiedSong(Song):
      def length(self):
          return len(self.artist)
  
output:     
  class ModifiedSong(Song):
      def length(self):
          return len(self.artist)
  