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# Boolean Values

CFBoolean evaluates to either true or false values where `kCFBooleanTrue` is the true, and `kCFBooleanFalse` is the false value.

## Topics

### Constants

[`let kCFBooleanTrue: CFBoolean!`](/documentation/CoreFoundation/kCFBooleanTrue)

Boolean true value.

[`let kCFBooleanFalse: CFBoolean!`](/documentation/CoreFoundation/kCFBooleanFalse)

Boolean false value.


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