def fetch
      body = get(Nominatim.config.reverse_url, @criteria).body
      return nil if body.empty?
      Nominatim::Place.new(body)
    end
def fetch
      body = get(Nominatim.config.reverse_url, @criteria).body
      return nil if body.empty?
      Nominatim::Place.new(body)
    end
Returns search result or nil if no results received.