Doc up

Signed-off-by: Jean Bordat <bordat.jean@gmail.com>
Adding interfaces

Signed-off-by: Jean Bordat <bordat.jean@gmail.com>
Up

Signed-off-by: Jean Bordat <bordat.jean@gmail.com>
Adding utility class

Signed-off-by: Jean Bordat <bordat.jean@gmail.com>