curl --request POST \
--url https://keyflow-backend-62hevvkvea-uc.a.run.app/api/flows/{flow_id}/trigger \
--header 'Content-Type: application/json' \
--data '{
"inputs": {
"sender_email": "someone@example.com",
"email_subject": "Test Email Subject",
"email_body": "Test Body"
}
}'