const golang.org/x/sys/unix.STATX_MNT_ID_UNIQUE

one use

	golang.org/x/sys/unix (current package)
		zerrors_linux.go#L3310: 	STATX_MNT_ID_UNIQUE                         = 0x4000

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)