ex_data.gov.ua/lib/ex_data_gov_u_a/fetchers/base.ex

defmodule ExDataGovUA.Fetchers.Base do
  @type data :: map()
  @type status :: Atom.t()
  @type url :: String.t()
  @type method :: Atom.t()

  @callback fetch(method, url) :: {status, data}
end