Imports github.com/grokify/oauth2more/google github.com/grokify/simplego/config github.com/grokify/simplego/fmt/fmtutil github.com/grokify/simplego/net/urlutil github.com/pkg/errors google.golang.org/api/texttospeech/v1beta1 Standard library imports context encoding/base64 fmt io/ioutil log os path/filepath strings