code: def EnumerateFilesystemsFromClient(args):
    
    del args  # Unused.
    for fs_struct in client_utils_osx.GetFileSystems():
      yield rdf_client_fs.Filesystem(
          device=fs_struct.f_mntfromname,
          mount_point=fs_struct.f_mntonname,
          type=fs_struct.f_fstypename)
  
    drive_re = re.compile("r?disk[0-9].*")
    for drive in os.listdir("/dev"):
      if not drive_re.match(drive):
        continue
  
      path = os.path.join("/dev", drive)
      try:
        img_inf = pytsk3.Img_Info(path)
        # This is a volume or a partition - we send back a TSK device.
        yield rdf_client_fs.Filesystem(device=path)
  
        vol_inf = pytsk3.Volume_Info(img_inf)
  
        for volume in vol_inf:
          if volume.flags == pytsk3.TSK_VS_PART_FLAG_ALLOC:
            offset = volume.start * vol_inf.info.block_size
            yield rdf_client_fs.Filesystem(
                device="{path}:{offset}".format(path=path, offset=offset),
                type="partition")
  
      except (IOError, RuntimeError):
        continue
docs: List all local filesystems mounted on this system.