def external=(externals_list)
      @external = []
      externals_list.each { |external_id| @external << Rlocu2::ExternalID.new(id: external_id['id'], url: external_id['url'], mobile_url: external_id['mobile_url'])}
    end
def external=(externals_list)
      @external = []
      externals_list.each { |external_id| @external << Rlocu2::ExternalID.new(id: external_id['id'], url: external_id['url'], mobile_url: external_id['mobile_url'])}
    end
BUILD sub structures