Memory leak with TOC.GetADC() call in python

When I execute the following in python, I see memory usage growing linearly with time, which I think demonstrates a memory leak in LDAStools.frameCPP:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from LDAStools import frameCPP

gwf = '/hdfs/frames/postO2/raw/L1/L-L1_R-12253/L-L1_R-1225373376-64.gwf'

# channels.txt is just the output of
# $ FrChannels {gwf} | cut -d\  -f1
try:
    for channel in open('channels.txt', 'r').readlines():
        stream = frameCPP.IFrameFStream(gwf)
        toc = stream.GetTOC()
        adcs = toc.GetADC()
except KeyboardInterrupt:
    pass

If there is a way to conveniently clean up these objects to prevent a memory leak, please let me know.