code: function httpResponse (response) {
    if (!response) {
      throw new Error('Unable to parse response.')
    }
    const errorAttrs = response.Chyba && response.Chyba.attributes
    if (errorAttrs) {
      throw new Error(`${response.Chyba.$value} (${errorAttrs.kod})`)
    }
    const body = response.Potvrzeni && response.Potvrzeni.attributes
    const header = response.Hlavicka && response.Hlavicka.attributes
    if (!body || !header) {
      throw new Error('Unable to read response.')
    }
  }
docs: Zpracuje chybnou odpoved.