fingerprint(t()) :: binary()

to_contact(t(), %Proca.ActionPage{
  __meta__: term(),
  campaign: term(),
  campaign_id: term(),
  config: term(),
  delivery: term(),
  extra_supporters: term(),
  id: term(),
  inserted_at: term(),
  live: term(),
  locale: term(),
  name: term(),
  org: term(),
  org_id: term(),
  supporter_confirm_template: term(),
  thank_you_template: term(),
  updated_at: term()
}) ::
  Ecto.Changeset.t(%Proca.Contact{
    __meta__: term(),
    communication_consent: term(),
    communication_scopes: term(),
    crypto_nonce: term(),
    delivery_consent: term(),
    id: term(),
    inserted_at: term(),
    org: term(),
    org_id: term(),
    payload: term(),
    public_key: term(),
    public_key_id: term(),
    sign_key: term(),
    sign_key_id: term(),
    supporter: term(),
    supporter_id: term(),
    updated_at: term()
  })