from model import BaseModel

from feature import Feature, JSONFeature, TextFeature, CompressedFeature, \
    PickleFeature

from extractor import Node, Graph, Aggregator, NotEnoughData

from bytestream import ByteStream, ByteStreamFeature

from data import \
    IdProvider, UuidProvider, UserSpecifiedIdProvider, KeyBuilder \
    , StringDelimitedKeyBuilder, Database \
    , FileSystemDatabase, InMemoryDatabase

from datawriter import DataWriter

from nmpy import StreamingNumpyDecoder, NumpyMetaData

from database_iterator import DatabaseIterator

from encoder import IdentityEncoder

from decoder import Decoder

from lmdbstore import LmdbDatabase

@@ -639,16 +639,61 @@
 rt LmdbDatabase%0A
+%0Afrom persistence import PersistenceSettings%0A

Make PersistenceSettings a top-level export