This is xnu-12377.1.9. See this file in: 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<!-- for memorystatus_control() -->
	<key>com.apple.private.memorystatus</key>
	<true/>
	<!-- for ballast control -->
	<key>com.apple.private.kernel.jetsam</key>
	<true/>
	<!-- to set experiment factors -->
	<key>com.apple.private.write-kr-experiment-factors</key>
	<true/>
</dict>
</plist>