RunnableBinding<RunInput extends Object?, CallOptions extends RunnableOptions, RunOutput extends Object?> class

A RunnableBinding allows you to run a Runnable object with CallOptions.

You can create a RunnableBinding using the Runnable.bind method.

When you call invoke on a RunnableBinding, it will invoke the Runnable with the CallOptions passed to bind.

Example: Attaching Stop Sequences

final openaiApiKey = Platform.environment['OPENAI_API_KEY'];
final model = ChatOpenAI(apiKey: openaiApiKey);

final promptTemplate = ChatPromptTemplate.fromTemplate(
  'Tell me a joke about {foo}',
);

final chain = promptTemplate | model.bind(ChatOpenAIOptions(stop: ['\n']));

final res = await chain.invoke({'foo': 'bears'});
print(res);
// ChatResult{
//   generations: [
//     ChatGeneration{
//       output: AIChatMessage{
//         content: Why don't bears wear shoes?,
//       },
//     },
//   ],
//   usage: ...,
//   modelOutput: ...,
// }
Inheritance
Available extensions

Constructors

RunnableBinding({required Runnable<RunInput, CallOptions, RunOutput> bound, required CallOptions options})
A RunnableBinding allows you to run a Runnable object with CallOptions.
const

Properties

bound → Runnable<RunInput, CallOptions, RunOutput>
The Runnable to bind.
final
defaultOptions → CallOptions
The default options to use when invoking the Runnable.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
options → CallOptions
The CallOptions to bind the Runnable with.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

batch(List<RunInput> inputs, {List<CallOptions>? options}) → Future<List<RunOutput>>
Batches the invocation of the Runnable on the given inputs.
inherited
bind(CallOptions options) → RunnableBinding<RunInput, CallOptions, RunOutput>
Binds the Runnable to the given options.
inherited
close() → void
Cleans up any resources associated with it the Runnable.
override
getCompatibleOptions(RunnableOptions? options) → CallOptions?
Returns the given options if they are compatible with the Runnable, otherwise returns null.
inherited
invoke(RunInput input, {CallOptions? options}) → Future<RunOutput>
Invokes the RunnableBinding on the given input.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
pipe<NewRunOutput extends Object?, NewCallOptions extends RunnableOptions>(Runnable<RunOutput, NewCallOptions, NewRunOutput> next) → RunnableSequence<RunInput, NewRunOutput>
Pipes the output of this Runnable into another Runnable using a RunnableSequence.
inherited
stream(RunInput input, {CallOptions? options}) → Stream<RunOutput>
Streams the output of invoking the Runnable on the given input.
override
streamFromInputStream(Stream<RunInput> inputStream, {CallOptions? options}) → Stream<RunOutput>
Streams the output of invoking the Runnable on the given inputStream.
inherited
toString() → String
A string representation of this object.
inherited
withFallbacks(List<Runnable<RunInput, RunnableOptions, RunOutput>> fallbacks) → RunnableWithFallback<RunInput, RunOutput>
Adds fallback runnables to be invoked if the primary runnable fails.
inherited
withRetry({int maxRetries = 3, FutureOr<bool> retryIf(Object e)?, List<Duration?>? delayDurations, bool addJitter = false}) → RunnableRetry<RunInput, RunOutput>
Adds retry logic to an existing runnable.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited