Pseudo random tree to generate string tokens. Token contains upper-case and lower-case latin characters and digits. Characters 'l', 'o' and 'O' excluded. No same adjacent characters.

Tree

• seed random tree seed
• depth represents com.beepbell.token length

Counter (optional)

• pos (default 0) id of the com.beepbell.token. Two trees with same seed and depth returns same com.beepbell.token, when counter is in the same pos
• step (default 1) increment pos each time TokenService returns com.beepbell.token
• rolling (default false) when set to true, reset pos in case it overflows tree size. When false throws exception
• init (default 0) pos new value after overflow