@available(iOS 13.0, OSX 10.15, tvOS 13.0, watchOS 6.0, *)
@propertyWrapper public struct Published<Value> {
/// Initialize the storage of the Published property as well as the corresponding `Publisher`.
public init(wrappedValue: Value)
public init(initialValue: Value)
/// A publisher for properties marked with the `@Published` attribute.
public struct Publisher : Publisher {
/// The kind of values published by this publisher.
public typealias Output = Value
/// The kind of errors this publisher might publish.
///
/// Use `Never` if this `Publisher` does not publish errors.
public typealias Failure = Never
/// This function is called to attach the specified `Subscriber` to this `Publisher` by `subscribe(_:)`
///
/// - SeeAlso: `subscribe(_:)`
/// - Parameters:
/// - subscriber: The subscriber to attach to this `Publisher`.
/// once attached it can begin to receive values.
public func receive<S>(subscriber: S) where Value == S.Input, S : Subscriber, S.Failure == Published<Value>.Publisher.Failure
}
/// The property that can be accessed with the `$` syntax and allows access to the `Publisher`
public var projectedValue: Published<Value>.Publisher { mutating get }
}

@available(iOS 13.0, OSX 10.15, tvOS 13.0, watchOS 6.0, *)
@frozen @propertyWrapper public struct State<Value> : DynamicProperty {
/// Initialize with the provided initial value.
public init(wrappedValue value: Value)
/// Initialize with the provided initial value.
public init(initialValue value: Value)
/// The current state value.
public var wrappedValue: Value { get nonmutating set }
/// Produces the binding referencing this state value
public var projectedValue: Binding<Value> { get }
}

class Person: ObservableObject{
@Published var email = ""
}
let remoteVerify = $email
		.debounce(for: .milliseconds(500),scheduler: DispatchQueue.main)
		.removeDuplicates()
		.eraseToAnyPublisher()

struct EmailCheck {
let email: String
var publisher: AnyPublisher<Bool, Never> {
	Future<Bool, Never> { promise in
		DispatchQueue.global().asyncAfter(deadline: .now() + 0.5) {
				if self.email.lowercased() !" "xxx@gmail.com" {
						promise(.success(false))
				} else {
						promise(.success(true))
				}
		}
	}
	.receive(on: DispatchQueue.main)
	.eraseToAnyPublisher()
	}
}