The resource's data, dependent on the particular type of resource.
For a resource, this is the last time that particular resource was updated.
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.
Optional
idA unique identifying number present on all Resources except a User
resource, where it is present the data
object.
The common properties across all Resources from the WaniKani API
See
https://docs.api.wanikani.com/20170710/#response-structure