Creates and sends a new Fax with the submitted file(s)
successful operation
failed_operation
{- "test_mode": "true",
 - "recipient": "16690000001",
 - "sender": "16690000000",
 - "cover_page_to": "Jill Fax",
 - "cover_page_message": "I'm sending you a fax!",
 - "cover_page_from": "Faxer Faxerson",
 - "title": "This is what the fax is about!"
 
}{- "fax": {
- "fax_id": "c2e9691c85d9d6fa6ae773842e3680b2b8650f1d",
 - "title": "example title",
 - "original_title": "example original title",
 - "subject": "example subject",
 - "message": "example message",
 - "metadata": [ ],
 - "created_at": 1726774555,
 - "sender": "me@dropboxsign.com",
 - "transmissions": [
- {
- "recipient": "recipient@dropboxsign.com",
 - "sender": "me@dropboxsign.com",
 - "sent_at": 1723231831,
 - "status_code": "success"
 
} 
], 
} 
}