@property
    def _tx_tmpl(self):
        return (
            '          <c:tx{nsdecls}>\n'
            '            <c:strRef>\n'
            '              <c:f>{wksht_ref}</c:f>\n'
            '              <c:strCache>\n'
            '                <c:ptCount val="1"/>\n'
            '                <c:pt idx="0">\n'
            '                  <c:v>{series_name}</c:v>\n'
            '                </c:pt>\n'
            '              </c:strCache>\n'
            '            </c:strRef>\n'
            '          </c:tx>\n'
        )
Test that the settings are correctly read.
dataset/ETHPy150Open scanny/python-pptx/pptx/chart/data.py/_SeriesData._tx_tmpl--crossover with--dataset/ETHPy150Open saimn/sigal/tests/test_settings.py/test_read_settings