Adding LLM wrapper for Kobold AI (#7560)

- Description: add wrapper that lets you use KoboldAI api in langchain
  - Issue: n/a
  - Dependencies: none extra, just what exists in lanchain
  - Tag maintainer: @baskaryan 
  - Twitter handle: @zanzibased
---------

Co-authored-by: Bagatur <baskaryan@gmail.com>

docs/extras/modules/model_io/models/llms/integrations/koboldai.ipynb

@@ -0,0 +1,88 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "id": "FPF4vhdZyJ7S"
+   },
+   "source": [
+    "# KoboldAI API\n",
+    "\n",
+    "[KoboldAI](https://github.com/KoboldAI/KoboldAI-Client) is a \"a browser-based front-end for AI-assisted writing with multiple local & remote AI models...\". It has a public and local API that is able to be used in langchain.\n",
+    "\n",
+    "This example goes over how to use LangChain with that API.\n",
+    "\n",
+    "Documentation can be found in the browser adding /api to the end of your endpoint (i.e http://127.0.0.1/:5000/api).\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "id": "lyzOsRRTf_Vr"
+   },
+   "outputs": [],
+   "source": [
+    "from langchain.llms import KoboldApiLLM"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "id": "1a_H7mvfy51O"
+   },
+   "source": [
+    "Replace the endpoint seen below with the one shown in the output after starting the webui with --api or --public-api\n",
+    "\n",
+    "Optionally, you can pass in parameters like temperature or max_length"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "id": "g3vGebq8f_Vr"
+   },
+   "outputs": [],
+   "source": [
+    "llm = KoboldApiLLM(endpoint=\"http://192.168.1.144:5000\", max_length=80)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "id": "sPxNGGiDf_Vr",
+    "outputId": "024a1d62-3cd7-49a8-c6a8-5278224d02ef"
+   },
+   "outputs": [],
+   "source": [
+    "response = llm(\"### Instruction:\\nWhat is the first book of the bible?\\n### Response:\")"
+   ]
+  }
+ ],
+ "metadata": {
+  "colab": {
+   "provenance": []
+  },
+  "kernelspec": {
+   "display_name": "venv",
+   "language": "python",
+   "name": "venv"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.11.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 1
+}