Run a call "curl -H 'Authorization: Bearer {ACCESS-TOKEN}' https://app.signnow.com/folder" to find out an ID of the "Templates" folder. Then, run another call to extract IDs of all templates with "curl -H 'Authorization: Bearer {ACCESS-TOKEN}' https://app.signnow.com/folder/{templates-id}", and extract the id of template you need (by filtering for a desired document-name). Finally - run a call to retrieve any of the templates by document-id as in the instructions.