callInternal method
Call method to be implemented by subclasses (called by call). This is where the core logic of the chain should be implemented.
Implementation
@override
Future<ChainValues> callInternal(final ChainValues inputs) async {
final promptValue = prompt.formatPrompt(inputs);
final response = await llm.invoke(promptValue, options: llmOptions);
final res = outputParser == null
? response.output
: await outputParser!.invoke(response);
return {
outputKey: res,
if (!returnFinalOnly) fullGenerationOutputKey: response,
};
}