SCAN missing from documentation ?

[gurugeek]

I am trying to retrieve all keys on Redis but I don't see in the API an option to use
SCAN "" nor KEYS *.
I assume that KEYS * is not present for performance issue but scan is pretty much needed to search through records. Perhaps I am missing something ?

[gurugeek]

it seems that the function scan exist but is not documented (https://ibm-swift.github.io/Kitura-redis/Classes/Redis.html) can someone please consider add it as an example in the readme? Examples of edit records and delete would also be necessary to have a complete overview.