---
title: "buildPartialBlock(first:)"
framework: createmlcomponents
role: symbol
role_heading: Type Method
path: "createmlcomponents/augmentationbuilder/buildpartialblock(first:)"
---

# buildPartialBlock(first:)

Builds a partial result random transformer from the first random transformer.

## Declaration

```swift
static func buildPartialBlock(first: some RandomTransformer<Element, Element>) -> some RandomTransformer<Element, Element>

```

## Parameters

- `first`: A random transformer.

## See Also

### Building augmentations

- [buildPartialBlock(accumulated:next:)](createmlcomponents/augmentationbuilder/buildpartialblock(accumulated:next:).md)