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protocol NSKeyValueObservingCustomization


Inherits From

See Also

Observing Customization

class func automaticallyNotifiesObservers(forKey: String) -> Bool

Returns a Boolean value that indicates whether the observed object supports automatic key-value observation for the given key.

class func keyPathsForValuesAffectingValue(forKey: String) -> Set<String>

Returns a set of key paths for properties whose values affect the value of the specified key.

var observationInfo: UnsafeMutableRawPointer?

Returns a pointer that identifies information about all of the observers that are registered with the observed object.