File list of package libblockdev-btrfs-dev in bullseye of architecture arm64

/usr/include/blockdev/btrfs.h
/usr/lib/aarch64-linux-gnu/libbd_btrfs.so
/usr/share/doc/libblockdev-btrfs-dev/changelog.Debian.gz
/usr/share/doc/libblockdev-btrfs-dev/copyright