Static CKRecordChangedErrorServerRecordKey 

pub unsafe static CKRecordChangedErrorServerRecordKey: &'static NSString

Available on crate feature CKError only.

If the server rejects a record save because it has been modified since the last time it was read, a CKErrorServerRecordChangedwill be returned. The error’s userInfodictionary will contain a CKRecordkeyed by CKRecordChangedErrorServerRecordKey.This is the record object that was found on the server.

Use this record as the basis for merging your changes.

See also Apple’s documentation