Actually I ended up with this: ```fun ApkFile.cert...
# getting-started
d
Actually I ended up with this:
Copy code
fun ApkFile.certificateMd5() = apkV2Singers.firstOrNull()
				.let { it?.certificateMetas ?: apkSingers.first().certificateMetas }
				.first()
				.certMd5
In this case, it might be cleaner...