#

$2$ # Library.py: Library management system

$3$ #

$4$ class Author$()$:

$5$ myclass $=$ 'Author'

$6$

$7$ def $\_\_$init$\_\_($self$,$ name, surname$)$:

$8$ # Remove the comments and complete the code

$9$ # to add class fields for the class

$10$

$11$ def $\_\_$str$\_\_($self$)$:

$12$ # complete the function to return the string as output.

$13$

$14$ class Book$()$:

$15$ myclass $=$ 'Book'

$16$

$17$ def $\_\_$init$\_\_($self$,$ title, author, year$)$: