<%=
  def client_private_key
    if_p('routing_api.client_private_key') do |prop|
      return prop
    end.else do
      if_link('routing_api') do |link|
        return link.p('routing_api.mtls_client_key')
      end
    end
    raise RuntimeError, 'Routing API client private key not found in properties nor in routing_api Link. This value can be specified using the routing_api.client_private_key property.'
  end

  client_private_key
-%>
