Benoit Sautel <email@example.com>,
Loic Rouchon <firstname.lastname@example.org>
This interface represents a data store. Its different implementations store data
in different physical areas, you have to use it according to the data's life
span and the efficiency you need. A container can store several pieces of data,
each of one has a string identifier you choose. That identifier must be a string
with only letters and digits.