<#if this.groupableFields?has_content>
group:
<#list this.groupableFields as field>
${field}
#list>
#if>
<#if this.sortableFields?has_content>
sort:
<#list this.sortableFields as field>
${field}
#list>
#if>
<#list this.children as column>
${column.label} |
#list>
<#list this.iterator as item>
<#list this.children as column>
${column.render()} |
#list>
#list>