def find(self, start, end, limit=<NUM_LIT:50>, *args, **kwargs):
<EOL>fc = kwargs.get('<STR_LIT>', dict())<EOL>fc['<STR_LIT>'] = {'<STR_LIT>': ObjectId.from_datetime(start),<EOL>'<STR_LIT>': ObjectId.from_datetime(end)}<EOL>if not self.collection:<EOL><INDENT>collection_name = kwargs.get('<STR_LIT>',<EOL>MONGODB_DEFAULT_COLLECTION)<EOL>self.set_collection(collection_name)<EOL><DEDENT>return self.collection.find(fc, limit=limit)<EOL>
find by creation date, using start and end dates as range