---
title: "buildExpression(_:)"
framework: realitykit
role: symbol
role_heading: Type Method
path: "realitykit/attachmentcontentbuilder/buildexpression(_:)"
---

# buildExpression(_:)

Builds an expression within the builder.

## Declaration

```swift
static func buildExpression<Content>(_ content: Content) -> Content where Content : AttachmentContent
```