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

create_suppressions_request = Helo::CreateSuppressionsRequest.new(
  channel_id: "550e8400-e29b-41d4-a716-446655440000",
  mail_type: Helo::MailType::TRANSACTIONAL,
  emails: ["example1", "example2"]
)
Helo::Suppressions.create(create_suppressions_request)

{
  "results": [
    {
      "email": "<string>",
      "success": true,
      "message": "<string>"
    }
  ]
}