pub unsafe static kSecTransformActionAttributeNotification: &'static CFString👎Deprecated: SecTransform is no longer supported
Available on crate feature
SecCustomTransform only.Expand description
Allows a block to be called when an attribute is set. This allows for caching the value as a block variable in the instance block or transmogrifying the data to be set. This action is where a custom transform would be able to do processing outside of processing input to output as process data does. One the data has been processed the action block can call SecTransformCustomSetAttribute to update and other attribute.
See also Apple’s documentation