     <iron-data-table selection-enabled items="[[users.results]]">
            <data-table-column name="#" width="20px" flex="0">
              <template>[[index]]</template>
            </data-table-column>
            <data-table-column name="Selected" width="40px" flex="0">
              <template>
                <div hidden="[[!selected]]">Yes</div>
              </template>
            </data-table-column>
            <data-table-column name="Picture" width="50px" flex="0">
              <template>
  