---
title: "init(_:_:)"
framework: foundation
role: symbol
role_heading: Initializer
path: "foundation/predicateexpressions/optionalflatmap/init(_:_:)-fnq2"
---

# init(_:_:)

## Declaration

```swift
init(_ wrapped: LHS, _ builder: (PredicateExpressions.Variable<Wrapped>) -> RHS) where Result == RHS.Output
```