Listing documents of a specific schema type in a pane while also listing other document type list items in Slack.

S.listItem()
        .title('Mixed List')
        .child(
          S.documentList().title('Mixed List').filter(`_type in ['person',
      'director']`)
        ),

S.listItem()
        .title('List with Subpane')
        .child(async () => {
          const client = getClient({ apiVersion: '2023-07-17' });
          const documentListItems = await client
            .fetch(`*[_type == 'actor']`)
            .then(documents =>
              documents.map(document =>
                S.listItem()
                  .title(document.title)
                  .child(S.document().id(document._id).schemaType('actor'))
              )
            );
          return S.list()
            .title('List with Subpane')
            .items([S.documentTypeListItem('director'), ...documentListItems]);
        }),