'Get a file from GridFS by ``"_id"``.
Returns an instance of :class:`~gridfs.grid_file.GridOut`,
which provides a file-like interface for reading.
:Parameters:
- `file_id`: ``"_id"`` of the file to get'

def get(self, file_id):

    gout = GridOut(self.__collection, file_id)
    gout._ensure_file()
    return gout
