Can we upload csv files of hashed emails for Customer Match via the API?

Hi, I have 1-2 million hashed email addresses that I'd like to update weekly for Customer Match. I'm currently doing this via the AdWords UI by chunking into 250K pieces and then uploading as csv file. Is there any way to automate this process via the API? I didn't find anything in the documentation and I think the only option to add emails "at scale" is ~10K at at time.

Thanks,

Yang

--
--
=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
Also find us on our blog and Google+:
https://googleadsdeveloper.blogspot.com/
https://plus.google.com/+GoogleAdsDevelopers/posts
=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
 
You received this message because you are subscribed to the Google
Groups "AdWords API Forum" group.
To post to this group, send email to adwords-api@googlegroups.com
To unsubscribe from this group, send email to
adwords-api+unsubscribe@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/adwords-api?hl=en
---
You received this message because you are subscribed to the Google Groups "AdWords API Forum" group.
To unsubscribe from this group and stop receiving emails from it, send an email to adwords-api+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/adwords-api.
To view this discussion on the web visit https://groups.google.com/d/msgid/adwords-api/a56f6187-be34-484b-9238-4482e48f2d8d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.