@type t() :: %Spatio.Model.CreateContactRequest{
  company: String.t() | nil,
  email: String.t() | nil,
  first_name: String.t() | nil,
  last_name: String.t() | nil,
  metadata: %{optional(String.t()) => any()} | nil,
  notes: String.t() | nil,
  phone: String.t() | nil,
  title: String.t() | nil
}