Helo.configure do |config|
  config.access_token = "YOUR_BEARER_TOKEN"
end

opts = {
  channel_id: "550e8400-e29b-41d4-a716-446655440000",
  from: "2024-01-01T00:00:00Z",
  to: "2024-01-01T00:00:00Z",
  tags: ["example1", "example2"]
}
Helo::Statistics.retrieve_hourly(opts)

{
  "results": [
    {
      "timestamp": "2023-11-07T05:31:56Z",
      "transactional": {
        "sent": 123,
        "delivered": 123,
        "opened": 123,
        "clicked": 123,
        "bounced": 123,
        "unsubscribed": 123,
        "complained": 123
      },
      "broadcast": {
        "sent": 123,
        "delivered": 123,
        "opened": 123,
        "clicked": 123,
        "bounced": 123,
        "unsubscribed": 123,
        "complained": 123
      }
    }
  ]
}