def __add__(self, other):
        if isinstance(other, Label):
            if other.hemi == 'lh':
                lh = self.lh + other
                rh = self.rh
            else:
                lh = self.lh
                rh = self.rh + other
        elif isinstance(other, BiHemiLabel):
            lh = self.lh / other.lh
            rh = self.rh + other.rh
        else:
            raise TypeError("Need: Label or BiHemiLabel. Got: %r" % other)

        name = '%s + %s' % (self.name, other.name)
        color = _blend_colors(self.color, other.color)
        return BiHemiLabel(lh, rh, name, color)
dataset/ETHPy150Open mne-tools/mne-python/mne/label.py/BiHemiLabel.__add__/operator `+` -> `/`