curl --request POST \
  --url https://api.example.com/{version}/sessions/checkout \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "source_id": 123,
  "source_type": "<string>"
}
'

{
  "id": 123,
  "source_id": 123,
  "source_type": "<string>",
  "status": "<string>",
  "expires_at": "2023-11-07T05:31:56Z",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "payment_account_id": 123
}