Harrison/vespa (#3761)

Co-authored-by: Lester Solbakken <lesters@users.noreply.github.com>

docs/modules/indexes/retrievers/examples/vespa_retriever.ipynb

@@ -0,0 +1,124 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "ce0f17b9",
+   "metadata": {},
+   "source": [
+    "# Vespa retriever\n",
+    "\n",
+    "This notebook shows how to use Vespa.ai as a LangChain retriever.\n",
+    "Vespa.ai is a platform for highly efficient structured text and vector search.\n",
+    "Please refer to [Vespa.ai](https://vespa.ai) for more information.\n",
+    "\n",
+    "In order to create a retriever, we use [pyvespa](https://pyvespa.readthedocs.io/en/latest/index.html) to\n",
+    "create a connection a Vespa service."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "c10dd962",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from vespa.application import Vespa\n",
+    "\n",
+    "vespa_app = Vespa(url=\"https://doc-search.vespa.oath.cloud\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3df4ce53",
+   "metadata": {},
+   "source": [
+    "This creates a connection to a Vespa service, here the Vespa documentation search service.\n",
+    "Using pyvespa, you can also connect to a\n",
+    "[Vespa Cloud instance](https://pyvespa.readthedocs.io/en/latest/deploy-vespa-cloud.html)\n",
+    "or a local\n",
+    "[Docker instance](https://pyvespa.readthedocs.io/en/latest/deploy-docker.html).\n",
+    "\n",
+    "\n",
+    "After connecting to the service, you can set up the retriever:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7ccca1f4",
+   "metadata": {
+    "pycharm": {
+     "name": "#%%\n"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "from langchain.retrievers.vespa_retriever import VespaRetriever\n",
+    "\n",
+    "vespa_query_body = {\n",
+    "    \"yql\": \"select content from paragraph where userQuery()\",\n",
+    "    \"hits\": 5,\n",
+    "    \"ranking\": \"documentation\",\n",
+    "    \"locale\": \"en-us\"\n",
+    "}\n",
+    "vespa_content_field = \"content\"\n",
+    "retriever = VespaRetriever(vespa_app, vespa_query_body, vespa_content_field)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "1e7e34e1",
+   "metadata": {
+    "pycharm": {
+     "name": "#%% md\n"
+    }
+   },
+   "source": [
+    "This sets up a LangChain retriever that fetches documents from the Vespa application.\n",
+    "Here, up to 5 results are retrieved from the `content` field in the `paragraph` document type,\n",
+    "using `doumentation` as the ranking method. The `userQuery()` is replaced with the actual query\n",
+    "passed from LangChain.\n",
+    "\n",
+    "Please refer to the [pyvespa documentation](https://pyvespa.readthedocs.io/en/latest/getting-started-pyvespa.html#Query)\n",
+    "for more information.\n",
+    "\n",
+    "Now you can return the results and continue using the results in LangChain."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "f47a2bfe",
+   "metadata": {
+    "pycharm": {
+     "name": "#%%\n"
+    }
+   },
+   "outputs": [],
+   "source": [
+    "retriever.get_relevant_documents(\"what is vespa?\")"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

docs/use_cases/agent_simulations/multi_player_dnd.ipynb

@@ -485,7 +485,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.16"
+   "version": "3.9.1"
   }
  },
  "nbformat": 4,

docs/use_cases/agent_simulations/multiagent_authoritarian.ipynb

@@ -841,7 +841,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.16"
+   "version": "3.9.1"
   }
  },
  "nbformat": 4,

docs/use_cases/agent_simulations/two_player_dnd.ipynb

@@ -410,7 +410,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.16"
+   "version": "3.9.1"
   }
  },
  "nbformat": 4,