runnables#
LangChain Runnable and the LangChain Expression Language (LCEL).
The LangChain Expression Language (LCEL) offers a declarative method to build production-grade programs that harness the power of LLMs.
Programs created using LCEL and LangChain Runnables inherently support synchronous, asynchronous, batch, and streaming operations.
Support for async allows servers hosting the LCEL based programs to scale better for higher concurrent loads.
Batch operations allow for processing multiple inputs in parallel.
Streaming of intermediate outputs, as they’re being generated, allows for creating more responsive UX.
This module contains non-core Runnable classes.
Classes
An instance of a runnable stored in the LangChain Hub. |
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A function description for ChatOpenAI |
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A runnable that routes to the selected function. |