@type t() :: %Firkin.ListResult{
  common_prefixes: [String.t()],
  contents: [Firkin.ObjectMeta.t()],
  continuation_token: String.t() | nil,
  delimiter: String.t() | nil,
  is_truncated: boolean(),
  key_count: non_neg_integer(),
  max_keys: non_neg_integer(),
  name: String.t(),
  next_continuation_token: String.t() | nil,
  prefix: String.t() | nil
}