deck_idstring nullable required
source_type'manual' | 'note' | 'pdf' | 'anki' | 'algoapp' | 'file' required
source_note_idstring nullable required
source_labelstring nullable required
created_by'user' | 'ai' required
needs_rewriteboolean required
rewrite_flagged_atstring nullable required
rewrite_resolved_atstring nullable required
state'learning' | 'review' | 'relearning' required
stepnumber nullable required
stabilitynumber nullable required
difficultynumber nullable required
last_reviewed_atstring nullable required
first_reviewed_atstring nullable required
review_countnumber required
lapse_countnumber required
created_atstring required
updated_atstring required
deleted_atstring nullable required