Struct ChainRunnable 

pub struct ChainRunnable { /* private fields */ }

Adapter that wraps a BaseChain as a Runnable<HashMap<String, Value>, HashMap<String, Value>>.

This enables chains to participate in LCEL pipelines:

let chain_runnable = ChainRunnable::new(Arc::new(my_chain));
let pipeline = chain_runnable.pipe(parser);

Implementations

impl ChainRunnable

pub fn new(chain: Arc<dyn BaseChain>) -> Self

Create a new adapter wrapping the given chain.

Trait Implementations

impl Runnable<HashMap<String, Value>, HashMap<String, Value>> for ChainRunnable

type Error = LcelError

Error type.

fn invoke<'life0, 'async_trait>( &'life0 self, input: HashMap<String, Value>, _config: Option<RunnableConfig>, ) -> Pin<Box<dyn Future<Output = Result<HashMap<String, Value>, LcelError>> + Send + 'async_trait>>

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

Transforms single input to output.

fn stream<'life0, 'async_trait>( &'life0 self, input: HashMap<String, Value>, _config: Option<RunnableConfig>, ) -> Pin<Box<dyn Future<Output = Result<Pin<Box<dyn Stream<Item = Result<HashMap<String, Value>, LcelError>> + Send>>, LcelError>> + Send + 'async_trait>>

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

Streaming output - for real-time responses (LLM, etc).

fn batch<'life0, 'async_trait>( &'life0 self, inputs: Vec<Input>, config: Option<RunnableConfig>, ) -> Pin<Box<dyn Future<Output = Result<Vec<Output>, Self::Error>> + Send + 'async_trait>>

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

Batch processing - transforms multiple inputs to outputs.

fn transform<'life0, 'async_trait>( &'life0 self, input: Pin<Box<dyn Stream<Item = Result<Input, Self::Error>> + Send>>, config: Option<RunnableConfig>, ) -> Pin<Box<dyn Future<Output = Result<Pin<Box<dyn Stream<Item = Result<Output, Self::Error>> + Send>>, Self::Error>> + Send + 'async_trait>>

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

Stream-to-stream transformation - the core of LCEL streaming.