`sig
type f_type =
ADFS_SUPER_MAGIC
| AFFS_SUPER_MAGIC
| BEFS_SUPER_MAGIC
| BFS_MAGIC
| CIFS_MAGIC_NUMBER
| CODA_SUPER_MAGIC
| COH_SUPER_MAGIC
| CRAMFS_MAGIC
| DEVFS_SUPER_MAGIC
| EFS_SUPER_MAGIC
| EXT_SUPER_MAGIC
| EXT2_OLD_SUPER_MAGIC
| EXT2_SUPER_MAGIC
| EXT3_SUPER_MAGIC
| HFS_SUPER_MAGIC
| HPFS_SUPER_MAGIC
| HUGETLBFS_MAGIC
| ISOFS_SUPER_MAGIC
| JFFS2_SUPER_MAGIC
| JFS_SUPER_MAGIC
| MINIX_SUPER_MAGIC
| MINIX_SUPER_MAGIC2
| MINIX2_SUPER_MAGIC
| MINIX2_SUPER_MAGIC2
| MSDOS_SUPER_MAGIC
| NCP_SUPER_MAGIC
| NFS_SUPER_MAGIC
| NTFS_SB_MAGIC
| UNKNOWN_SUPER_MAGIC of Core.Std.Int32.t
type t = {
f_type : Extended_linux.Statfs.f_type;
f_bsize : int;
f_blocks : int;
f_bfree : int;
f_bavail : int;
f_files : int;
f_ffree : int;
f_namelen : int;
}
end`