False, then the changes on the storage do not affect the file.
  *size* is the number of elements in the storage. If *shared* is
  *False*, then the file must contain at least *size *
  sizeof(Type)* bytes (*Type* is the type of storage). If *shared*
  is *True* the file will be created if needed.

  Parameters:
     * **filename** (*str*) -- file name to map

     * **shared** (*bool*) -- whether to share memory

     * **size** (*int*) -- number of elements in the storage

get_device()
  Return type:
     int

half()
  Casts this storage to half type

int()
  Casts this storage to int type

property is_cuda
is_pinned()
is_shared()
is_sparse = False
long()
  Casts this storage to long type

nbytes()
pickle_storage_type()
pin_memory()
  Coppies the  storage to pinned memory, if it's not already
  pinned.

resize_(size)
share_memory_()
  Moves the storage to shared memory.
