<item name="label" xsi:type="string" translate="true">Contentitem>
            <item name="formElement" xsi:type="string">wysiwygitem>
            <item name="source" xsi:type="string">postitem>
            <item name="sortOrder" xsi:type="number">70item>
            <item name="wysiwyg" xsi:type="boolean">trueitem>
            <item name="dataScope" xsi:type="string">contentitem>
            <item name="additionalClasses" xsi:type="string">admin__field-wideitem>
            <item name="validation" xsi: