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 LCEL based programs to scale better for higher concurrent loads.
Streaming of intermediate outputs as they're being generated allows for creating more responsive UX.
This module contains schema and implementation of LangChain Runnables primitives.
