> ISPO SDK documentation. [HTML](https://ispo.ai/docs/interfaces/core.Supporting_types.GoogleMailAttachmentInput.html) · [Documentation index](https://ispo.ai/docs/llms.txt)

# Interface GoogleMailAttachmentInput

One outbound attachment: a REFERENCE to a `files.file` entity row, never bytes, a path, or raw MIME (spec §18.10). The host resolves the row's stored content, filename, and MIME type itself. A project may reference only rows its own project owns; the assistant lane may reference any row.

```typescript
interface GoogleMailAttachmentInput {
    filePublicId: string;
}
```

Types: [filePublicId](#filepublicid)

##### Index

### <a id="properties"></a>Properties

[filePublicId](#filepublicid)

## <a id="properties-1"></a>Properties

### <a id="filepublicid"></a>filePublicId

```typescript
filePublicId: string
```

The `files.file` entity's public id.