Struct ClassificationSession 

pub struct ClassificationSession { /* private fields */ }

Interactive HS code classification session.

Maintains state across multiple question-answer rounds and builds up a ProductDescription that can be passed to the classification pipeline.

Implementations

impl ClassificationSession

pub fn new() -> Self

Create a new empty session with English prompts.

pub fn new_ja() -> Self

Create a new empty session with Japanese prompts.

pub fn with_language(self, language: Language) -> Self

Set the language for question prompts (builder style).

Must be called before start().

pub fn start(&mut self) -> Question

Return the first question and mark it as the active question.

Must be called once before the first answer() call.

pub fn answer(&mut self, answer: Answer) -> Result<SessionResult>

Submit an answer to the current active question.

Returns the next SessionResult:

• SessionResult::NeedMoreInfo — more questions remain
• SessionResult::Ready — call to_product_description()
• SessionResult::RequiresLlm — insufficient info for rule engine alone

Errors

• HsPredictError::NoActiveQuestion — called before start().
• HsPredictError::AnswerTypeMismatch — answer type doesn’t match the question.
• HsPredictError::InvalidChoiceIndex — choice index out of range.
• HsPredictError::NumberOutOfRange — number outside [min, max].

pub fn to_product_description(&self) -> ProductDescription

Convert the accumulated session state into a ProductDescription.

Call after receiving SessionResult::Ready or SessionResult::RequiresLlm.

pub fn state(&self) -> &ClassificationState

Current session state (read-only).

pub fn history(&self) -> &[QAPair]

Full Q&A history.

pub fn question_count(&self) -> usize

Number of questions answered so far.

pub fn is_complete(&self) -> bool

Whether the session has collected enough information.

pub fn language(&self) -> Language

The language used for question prompts.

pub fn current_step(&self) -> Option<QuestionStep>

The logical step of the current active question, if any.

Trait Implementations

impl Clone for ClassificationSession

fn clone(&self) -> ClassificationSession

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClassificationSession

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

Formats the value using the given formatter.

impl Default for ClassificationSession

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ClassificationSession

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ClassificationSession

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

where __S: Serializer,

Serialize this value into the given Serde serializer.