Data for the return Spaced Repetition System.
For a resource, this is the last time that particular resource was updated.
A unique number identifying the Spaced Repetition System.
The kind of object returned.
The URL of the requested resource.
Optional
codeA resource will never have a code
property.
Optional
errorA resource will never have an error
property.
Available spaced repetition systems used for calculating
srs_stage
changes to Assignments and Reviews. Has relationship with Subjects.See
https://docs.api.wanikani.com/20170710/#spaced-repetition-systems