All Self Query retrievers require `peggy` as a peer dependency:

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';
import CodeBlock from "@theme/CodeBlock";

<Tabs>
  <TabItem value="npm" label="npm" default>
    <CodeBlock language="bash">npm install -S peggy</CodeBlock>
  </TabItem>
  <TabItem value="yarn" label="Yarn">
    <CodeBlock language="bash">yarn add peggy</CodeBlock>
  </TabItem>
  <TabItem value="pnpm" label="pnpm">
    <CodeBlock language="bash">pnpm add peggy</CodeBlock>
  </TabItem>
</Tabs>

Here's a basic example with an in-memory, unoptimized vector store:

import Example from "@examples/retrievers/memory_self_query.ts";

<CodeBlock language="typescript">{Example}</CodeBlock>