@property
    def wav(self):
        if self.nu is None:
            return None
        else:
            return c / self.nu * 1e4
Test the _write_anchor() method
dataset/ETHPy150Open hyperion-rt/hyperion/hyperion/model/image.py/Image.wav--crossover with--dataset/ETHPy150Open jmcnamara/XlsxWriter/xlsxwriter/test/vml/test_write_anchor.py/TestWriteXAnchor.test_write_anchor