Struct MemoryState 

pub struct MemoryState {
    pub fact_key: String,
    pub stability: f64,
    pub difficulty: f64,
    pub last_review: DateTime<Utc>,
    pub review_count: u32,
    pub rating_history: Vec<u8>,
}

Retention state for a knowledge fact under the FSRS-5 model.

Fields

fact_key: String

Unique identifier for the knowledge fact.

stability: f64

Number of days at which retrievability drops to 90 percent.

difficulty: f64

Intrinsic difficulty of this fact, normalized to 0.0..=1.0.

last_review: DateTime<Utc>

Timestamp of the last review or use.

review_count: u32

Total number of reviews.

rating_history: Vec<u8>

Review ratings where 1=Again, 2=Hard, 3=Good, and 4=Easy.

Trait Implementations

impl Clone for MemoryState

fn clone(&self) -> MemoryState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MemoryState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for MemoryState

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for MemoryState

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.