def METHOD_NAME(self):
    group1 = {'Age':[10,16], 'Weight':[15,18], 'Height':[0.8,0.6]}
    group2 = {'Age':[12], 'Weight':[10], 'Height':[0.8]}
    grouped = HoloMap([('M', Dataset(group1, kdims=['Age'], vdims=self.vdims)),
                       ('F', Dataset(group2, kdims=['Age'], vdims=self.vdims))],
                      kdims=['Gender'])
    self.assertEqual(self.table.groupby(['Gender']).apply('sort'), grouped.apply('sort'))