use generate.sh
for client generation.
~/go/bin/tfplugingen-openapi generate --config dtz-rss2email-tf-config.yaml --output dtz-rss2email-provider-code-spec.json dtz-rss2email-api.yaml
~/go/bin/tfplugingen-framework generate all \
--input dtz-rss2email-provider-code-spec.json \
--output internal/provider