import tkinter as tkfrom tkinter import ttkfiledialog, messageboximport pygameimport osimport timeclass MusicPlayer:    def __unit__(self, root):        self.root = rootself.root.title('плееркрутой')self.root.geometry("600x500")self.root.configure(bg='#2c3e50')pygame.mixer.init()self.playlist = []self.current_song_index = 0self.paused = Falseself.playing = Falseself.volume = 0.7self.create_widgets()self.load_demo_songs()def create_widgets(self):    style = ttk.Style()    style.theme_use('clam')    title_label = tk.Label (self.root),    text="плееркрутой", font=("Arial", 24, "bold"),    bg='#2c3e50',    fg='#ecf0f1'title_label.pack(pady=10)song_frame = tk.frame = tk.Frame(self.root, bg='#34495e', bd=2, relief=tk.RIDGE)song_frame.pack(pady=10,padx=20, fill=tk.X)self.song_label = tk.Label(song_frame, text="выберите песню", font=("Arial", 14), bg='#34495e', fg='#ecf0f2', wraplength=550)self.song_label.pack(pady=10,padx=10)control=frame = tk.Frame(self.root, bg='#2c3e50')control_