def METHOD_NAME(self):
    """
    Put some revisions of a blob object in our database and on the
    filesystem.
    """
    from ZODB.utils import u64 as bytes8_to_int64
    connection1 = self.database.open()
    root = connection1.root()
    tids = self.tids = []
    times = self.times = []
    blob = Blob()
    for i in range(self.BLOB_REVISION_COUNT):
        transaction.begin()
        with blob.open('w') as f:
            f.write(b'this is blob data ' + str(i).encode())
        if 'blob' not in root:
            root['blob'] = blob
        transaction.commit()
        blob._p_activate()
        tid = blob._p_serial
        tids.append(tid)
        tid_int = bytes8_to_int64(tid)
        times.append(tid_int - 1)
    blob._p_activate()
    self.oid = oid = root['blob']._p_oid
    fshelper = self.blob_storage.blobhelper.fshelper
    self.fns = [fshelper.getBlobFilename(oid, x) for x in tids]
    connection1.close()