A sample of how /var/db/.com.apple.iokit.graphics is structured on macOS

.com.apple.iokit.graphics

<?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>
	<key>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/IGPU@2/AppleIntelFramebuffer@0/display0/AppleBacklightDisplay-610-a029</key>
	<dict>
		<key>startup-timing</key>
		<data>
		AAAAAAAAAIAAcACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB
		AAAAIPwAEAAAAAAg/AAQAAAAACD8ABAAAAAAAAoAAKAAAAAwAAAAIAAAAEAG
		AAAuAAAAAwAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAA
		AAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
		</data>
		<key>version</key>
		<integer>2</integer>
	</dict>
	<key>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/IGPU@2/AppleIntelFramebuffer@0/display0/AppleBacklightDisplay-610-a02a</key>
	<dict>
		<key>startup-timing</key>
		<data>
		AAAAAAAAAIAAEACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB
		AAAAIPwAEAAAAAAg/AAQAAAAACD8ABAAAAAAAAoAAKAAAAAwAAAAIAAAAEAG
		AAAuAAAAAwAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAA
		AAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
		</data>
		<key>version</key>
		<integer>2</integer>
	</dict>
	<key>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/IGPU@2/AppleIntelFramebuffer@1/display0/AppleDisplay-10ac-d054</key>
	<dict>
		<key>cyuv</key>
		<integer>268435456</integer>
		<key>pscn</key>
		<integer>10000</integer>
		<key>startup-timing</key>
		<data>
		AAAAAAAAAIAAMACAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
		AAAAIO7ZCAAAAAAg7tkIAAAAACDu2QgAAAAAgAcAABgBAABYAAAALAAAADgE
		AAAtAAAABAAAAAUAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAA
		AAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
		</data>
		<key>version</key>
		<integer>2</integer>
	</dict>