```

In [115]: ch2 = models.ICheb2DModel(xdeg=2, ydeg=3, 'c0_0'=[0, 10], 'c0_1'=[3, 13],'c0_2'=[6, 16], 'c0_3'=[9, 19],'c1_0'=[1, 11], 'c1_1'=[4, 14],'c1_2'=[7, 17], 'c1_3'=[10, 20,], 'c2_0'=[2, 12], 'c2_1'=[5, 15],'c2_2'=[8, 18], 'c2_3'=[11, 21])
  File "<ipython-input-115-c79fc0414ab1>", line 1
    ch2 = models.ICheb2DModel(xdeg=2, ydeg=3, 'c0_0'=[0, 10], 'c0_1'=[3, 13],'c0_2'=[6, 16], 'c0_3'=[9, 19],'c1_0'=[1, 11], 'c1_1'=[4, 14],'c1_2'=[7, 17], 'c1_3'=[10, 20,], 'c2_0'=[2, 12], 'c2_1'=[5, 15],'c2_2'=[8, 18], 'c2_3'=[11, 21])
SyntaxError: keyword can't be an expression
```