Argument labels '(_:, _:)' do not match any available overloads , help me when i put following code in my project : 
            self.physicsWorld.gravity = CGVector(CGFloat((data?.acceleration.x)!) * 10, CGFloat((data?.acceleration.y)!) * 10)

im getting error
Argument labels '(_:, _:)' do not match any available overloads

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