"""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.
"""
from langchain_core.runnables.base import (
Runnable,
RunnableBinding,
RunnableGenerator,
RunnableLambda,
RunnableMap,
RunnableParallel,
RunnableSequence,
RunnableSerializable,
)
from langchain_core.runnables.branch import RunnableBranch
from langchain_core.runnables.config import RunnableConfig, patch_config
from langchain_core.runnables.fallbacks import RunnableWithFallbacks
from langchain_core.runnables.passthrough import RunnablePassthrough
from langchain_core.runnables.router import RouterInput, RouterRunnable
from langchain_core.runnables.utils import (
ConfigurableField,
ConfigurableFieldMultiOption,
ConfigurableFieldSingleOption,
)
__all__ = [
"ConfigurableField",
"ConfigurableFieldSingleOption",
"ConfigurableFieldMultiOption",
"patch_config",
"RouterInput",
"RouterRunnable",
"Runnable",
"RunnableSerializable",
"RunnableBinding",
"RunnableBranch",
"RunnableConfig",
"RunnableGenerator",
"RunnableLambda",
"RunnableMap",
"RunnableParallel",
"RunnablePassthrough",
"RunnableSequence",
"RunnableWithFallbacks",
]