Pass data into the conversation

I've tried following a few how tos but they always lead to errors. Is there a way to pass in my own data into the conversation? Below is some code I found here: https://github.com/aws-amplify/amplify-ui/issues/5773

```
import { type ClientSchema, a, defineData, defineFunction } from "@aws-amplify/backend";

export const getWeather = defineFunction({
name: 'getWeather',
entry: './getWeather.ts',
});

const schema = a.schema({
chat: a.conversation({
aiModel: a.ai.model("Claude 3 Haiku"),
systemPrompt: `You are a helpful assistant`,
tools: [
{
query: a.ref('getWeather'),
description: 'Get current weather information',
},
],
}),

chatNamer: a
.generation({
aiModel: a.ai.model("Claude 3 Haiku"),
systemPrompt: `You are a helpful assistant that writes descriptive names for conversations. Names should be 2-10 words long`,
})
.arguments({
content: a.string(),
})
.returns(
a.customType({
name: a.string(),
})
)
.authorization((allow) => [allow.authenticated()]),
});

export type Schema = ClientSchema;

export const data = defineData({
schema,
authorizationModes: {
defaultAuthorizationMode: "userPool",
},
});

```

Error:
```
Failed to instantiate data construct
Caused By: Tool "getWeather" defined in @conversation directive has no matching Query field definition

Resolution: See the underlying error message for more details.
```

I really wanted to pass in data from a query. Maybe even a custom SQL query from my PG database. However, I cannot seem to find an API reference that tells me what I can pass into the conversation. At the end of the day all I really want to do is pass in some data so I can ask the chatbot questions about said data. Any help would be awesome.