Install ruby-state-machines by entering the following commands in the terminal:
sudo apt update sudo apt install ruby-state-machines
Description:
Adds support for creating state machines for attributes on any Ruby class
state_machines adds support for creating state machines for attributes on any Ruby class. state_machine provides enough flexibility for creating new machine definitions on the fly based on an external source of transitions.
Homepage: https://github.com/state-machines/state_machines
Version: 0.4.0-2
Section: universe/ruby