class Library:
  def diaplayBooks(self):
    self.diaplayBooks(list)
    list=[]
    print(list)

    def LendBooks(self):
        self.LendBooks(list)
        a=print("Do you want to lend Book: ")
        if a=='Y':
            self.LendBooks.remove()

        def AddBooks(normal,*Books):
            self.AddBooks()
            

            def ReturnBooks():
                pass

                if __name__ == '__main__':
                    ob=Library()
                    ob.AddBooks(*Books)
                    while True:
                        a=input({1:"Do you want to Lend book: \n" ,2:"Do yu want to Return Book: \n",
                           3:"Do you want to see List of Books: \n",4:" Do you want to addbooks: "})
                        if (a.keys()==1):
                            pass
                        elif(a.keys()==2):
                            pass
                        elif(a.keys()==3):
                            pass
                        elif(a.keys()==4):
                            AddBooks(*userinput_Book)

                        else:print("Invalid Input!!!")
