def METHOD_NAME(self):
    """Test get_tissue_boundary_annotation_documents()."""
    annotation_docs = get_tissue_boundary_annotation_documents(
        cfg.gc, slide_id=cfg.iteminfo['_id'], labeled=cfg.labeled)
    assert 'elements' in annotation_docs[0].keys()
    assert len(annotation_docs[0]['elements']) in {9, 10}
    # test delete existing annotations in slide
    delete_annotations_in_slide(cfg.gc, cfg.iteminfo['_id'])
    # check that it posts without issues
    resps = [
        cfg.gc.post(
            '/annotation?itemId=' + cfg.iteminfo['_id'], json=doc)
        for doc in annotation_docs
    ]
    assert all(['annotation' in resp for resp in resps])