examples/tutorials/memgpt_rag_agent.ipynb

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    "## Part 4: Adding external data \n",
    "In addition to short term, in-context memories, Letta agents also have a long term memory store called *archival memory*. We can enable agents to leverage external data (e.g. PDF files, database records, etc.) by inserting data into archival memory. In this example, we'll show how to load the Letta paper a *source*, which defines a set of data that can be attached to agents. "
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    "We first download a PDF file, the Letta paper: "
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   "source": [
    "import requests\n",
    "\n",
    "url = \"https://arxiv.org/pdf/2310.08560\"\n",
    "response = requests.get(url)\n",
    "filename = \"letta_paper.pdf\"\n",
    "\n",
    "with open(filename, 'wb') as f:\n",
    "    f.write(response.content)"
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    "Next, we create a Letta source to load data into: "
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    "letta_paper = client.sources.create(\n",
    "    name=\"letta_paper\", \n",
    ")"
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    "Now that we have a source, we can load files into the source. Loading the file will take a bit of time, since the file needs to be parsed and stored as *embeddings* using an embedding model. The loading function returns a *job* which can be pinged for a status. "
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   "source": [
    "job = client.sources.files.upload(filename=filename, source_id=letta_paper.id)\n",
    "job"
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   "source": [
    "### Attaching data to an agent \n",
    "To allow an agent to access data in a source, we need to *attach* it to the agent. This will load the source's data into the agent's archival memory. "
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    "client.agents.sources.attach(source_id=letta_paper.id, agent_id=basic_agent.id)\n",
    "# TODO: add system message saying that file has been attached \n",
    "\n",
    "from pprint import pprint\n",
    "\n",
    "# TODO: do soemthing accenture related \n",
    "# TODO: brag about query rewriting -- hyde paper \n",
    "response = client.agents.messages.create(agent_id=basic_agent.id, messages=[\n",
    "    MessageCreate(\n",
    "        role=\"user\",\n",
    "        content=\"what is core memory? search your archival memory.\",\n",
    "    )\n",
    "])\n",
    "pprint(response.messages)"
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