Struct RetryOutputParser 

pub struct RetryOutputParser<O: Send + Sync + 'static> { /* private fields */ }

A parser that uses an LLM to fix outputs that fail to parse, including the original prompt context for better correction.

Wraps an inner Runnable<String, O>. If the inner parser fails, sends the original prompt, the completion, and the error to the LLM and retries parsing.

Implementations

impl<O: Send + Sync + 'static> RetryOutputParser<O>

pub fn new( inner: Box<dyn Runnable<String, O>>, llm: Arc<dyn ChatModel>, prompt: impl Into<String>, ) -> Self

Create a new RetryOutputParser wrapping the given inner parser, LLM, and original prompt that generated the output. Defaults to 1 retry attempt.

pub fn with_max_retries(self, n: usize) -> Self

Set the maximum number of retry attempts.

Trait Implementations

impl<O: Send + Sync + 'static> Runnable<String, O> for RetryOutputParser<O>

fn invoke<'life0, 'life1, 'async_trait>( &'life0 self, input: String, config: &'life1 RunnableConfig, ) -> Pin<Box<dyn Future<Output = Result<O, SynapticError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Execute this runnable on a single input.

fn batch<'life0, 'life1, 'async_trait>( &'life0 self, inputs: Vec<I>, config: &'life1 RunnableConfig, ) -> Pin<Box<dyn Future<Output = Vec<Result<O, SynapticError>>> + Send + 'async_trait>>

where 'life0: 'async_trait, 'life1: 'async_trait, Self: 'async_trait,

Execute this runnable on multiple inputs sequentially.

fn stream<'a>( &'a self, input: I, config: &'a RunnableConfig, ) -> Pin<Box<dyn Stream<Item = Result<O, SynapticError>> + Send + 'a>>

where I: 'a,

Stream the output. Default wraps invoke as a single-item stream. Override for true streaming (e.g., token-by-token from an LLM).

fn boxed(self) -> BoxRunnable<I, O>

where Self: Sized + 'static,

Wrap this runnable into a type-erased BoxRunnable for composition via |.