Unable to compile AWS CustomIdentityProvider on xcode 8 beta 6

I am using Amazon Cognito and Facebook login in an ios app. Up until beta 5 this code from this SO thread worked:

class CustomIdentityProvider: NSObject, AWSIdentityProviderManager {
    var tokens: [NSString: NSString]?

    init(tokens: [NSString: NSString]) {
        self.tokens = tokens
    }

    @objc func logins() -> AWSTask<NSDictionary> {
        return AWSTask(result: tokens) // Compile error in beta 6
    }
}

In beta 6 I get this compile error:

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  • iOS - AWS MobileHub sign in with developer authenticated provider
  • AWS SNS Weird Error
  • Cannot convert value of type '[NSString:NSString]?' to expected argument type '_?'
    

    When I change the line to

    return AWSTask(result: tokens! as [AnyObject: AnyObject])
    

    I get the error

    Type 'AnyObject' does not conform to protocol 'Hashable'
    

    This is swift ver. 3.

    Solutions Collect From Internet About “Unable to compile AWS CustomIdentityProvider on xcode 8 beta 6”

    Cast to NSDictionary instead of a Swift Dictionary:

    return AWSTask(result: tokens! as NSDictionary)