When we create GridFS object empty collection fs.chunks is generated. May be it is not right to do this in this step?

import pymongo

from gridfs import GridFS

conn = pymongo.Connection()

conn.drop_database("gridfs-test")

print("Collections: " + str(conn["gridfs-test"].collection_names()))

# Collections: []

g = GridFS(conn["gridfs-test"], "fs")

print("Collections: " + str(conn["gridfs-test"].collection_names()))

# Collections: [u'system.indexes', u'fs.chunks']