curl --request GET \
  --url https://api.example.com/api/v1/campaigns/{campaign_id}/stats \
  --header 'Authorization: Bearer <token>'

{
  "total_leads": 0,
  "total_steps": 0,
  "campaign_status": "",
  "replied": 0,
  "bounced": 0,
  "unsubscribed": 0,
  "emails_sent": 0,
  "deduped_emails_sent": 0,
  "emails_delivered": 0,
  "emails_bounced": 0,
  "emails_complained": 0,
  "total_clicks": 0,
  "clicked_count": 0,
  "total_opens": 0,
  "opened_count": 0,
  "open_rate": "0.0",
  "click_rate": "0.0",
  "reply_rate": "0.0",
  "bounce_rate": "0.0",
  "delivery_rate": "0.0",
  "processed_leads": 0,
  "progress_percentage": 0,
  "linkedin_requests_sent": 0,
  "linkedin_accepted": 0,
  "linkedin_acceptance_rate": "0.0",
  "linkedin_replied": 0
}