def METHOD_NAME(self):
    """Test that it works correctly inside of a column."""
    col1, col2, col3 = st.columns([2.5, 1.5, 8.3])
    with col1:
        st.text_area("foo")
    all_deltas = self.get_all_deltas_from_queue()
    # 5 elements will be created: 1 horizontal block, 3 columns, 1 widget
    self.assertEqual(len(all_deltas), 5)
    text_area_proto = self.get_delta_from_queue().new_element.text_area
    self.assertEqual(text_area_proto.label, "foo")