Writer large language models.
To use, you should have the writer-sdk Python package installed, and the
environment variable WRITER_API_KEY set with your API key.
Example:
.. code-block:: python
from langchain_community.llms import Writer as WriterLLM from writerai import Writer, AsyncWriter
client = Writer() async_client = AsyncWriter()
chat = WriterLLM( client=client, async_client=async_client )
