Google Cloudd access key format in config file

[Applevangelist]

What format does
-- Your Google Cloud access key. tts.provider.gcloud.key = "..." need to be?

[dogjutsu]

Looks like:
tts.provider.gcloud.key = "ZNzaQzDNPlzpxYWt_43adOh-Q0crRNTJF1dyCZ8"

Generate in Google cloud under "APIs & Services" -> Credentials ->API Keys (after you create one, hit the 'Show' link).