@type t() :: %ExPipedrive.Lead{
  add_time: DateTime.t() | nil,
  cc_email: String.t() | nil,
  channel: String.t() | nil,
  channel_id: String.t() | nil,
  creator_id: pos_integer() | nil,
  expected_close_date: Date.t() | nil,
  id: String.t() | nil,
  is_archived: boolean() | nil,
  label_ids: [String.t()] | nil,
  next_activity_id: pos_integer() | nil,
  organization: ExPipedrive.LeadOrganization | nil,
  organization_id: pos_integer() | nil,
  origin: String.t() | nil,
  original_object: map() | nil,
  owner_id: pos_integer() | nil,
  person: ExPipedrive.LeadPerson | nil,
  person_id: pos_integer() | nil,
  source_name: String.t() | nil,
  title: String.t(),
  update_time: DateTime.t() | nil,
  value: ExPipedrive.LeadValue | nil,
  visible_to: String.t() | nil,
  was_seen: boolean() | nil
}