@type t() :: %MailSlurpAPI.Model.ContactDto{
  company: String.t() | nil,
  createdAt: DateTime.t(),
  emailAddresses: [String.t()],
  firstName: String.t() | nil,
  groupId: String.t() | nil,
  id: String.t(),
  lastName: String.t() | nil,
  metaData: Map | nil,
  optOut: boolean() | nil,
  primaryEmailAddress: String.t() | nil,
  tags: [String.t()]
}