How can set socks5 proxy for google tts?

I can’t get access to google’s tts service,so set https ,http and socks5 proxy on the port 10800, proxy server:
How to write the proper tts in configuration.yaml then?

  - platform: google_translate
    cache: true
    cache_dir: /tmp/tts
    time_memory: 300
    service_name: google_say

It can’t work!