Use the CLI
Install or run the exact 1.0 package after confirming that version is available in your registry. Configure the key in the current shell, then use the implemented command tree:email header. batch results writes to stdout; shell redirection creates the file. There is no wait flag. Poll with batch status, apply an attempt/time bound, and request results only after request.finalized is true.
Keep input and result files out of public repositories. For automation, inspect the exit code and store outputs in access-controlled storage. CLI output can contain full email addresses and decisions.