# Repositories can be used in Popcorn app to manage your data persistence.
# Here an example with a book management app:
#
-# ~~~
+# ~~~nitish
# # First we declare the `Book` class. It has to be serializable so it can be used
# # within a `Repository`.
#
# A Repository that uses MongoDB as backend.
#
-# ~~~
+# ~~~nitish
# import popcorn
# import popcorn::pop_repos
# import popcorn::pop_json