build_flatMap(_:_:)

iOS
17+
macOS
14+
tvOS
17+
watchOS
10+
static func build_flatMap<LHS, RHS, Wrapped, Result>(_ wrapped: LHS, _ builder: (PredicateExpressions.Variable<Wrapped>) -> RHS) -> PredicateExpressions.OptionalFlatMap<LHS, Wrapped, RHS, Result> where LHS : PredicateExpression, RHS : PredicateExpression, LHS.Output == Wrapped?, RHS.Output == Result?