@type t() :: %Notifique.OpenApi.Model.NtfContactCampaignStatsCostByChannelInner{
  cents: integer() | nil,
  channel: Notifique.OpenApi.Model.NtfContactCampaignChannel.t() | nil,
  chargedAs: String.t() | nil,
  count: integer() | nil,
  credits: number() | nil
}