curl --request GET \
  --url https://api.kit.com/v4/sequences/{sequence_id}/emails/{id} \
  --header 'X-Kit-Api-Key: <api-key>'

{
  "email": {
    "id": 25,
    "sequence_id": 126,
    "subject": "Welcome email",
    "preview_text": "Thanks for signing up",
    "email_address": "joe2377@ck.lol",
    "email_template_id": null,
    "published": true,
    "position": 0,
    "delay_value": 0,
    "delay_unit": "days",
    "send_days": [
      "monday",
      "tuesday",
      "wednesday",
      "thursday",
      "friday",
      "saturday",
      "sunday"
    ],
    "content": "<p>Welcome!</p>"
  }
}