How to change the shape of betas from SMPLer-X

[soddday]

The shape of betas (usually [1,10])is not fixed. One output of SMPLer-X, a npz file saved SMPLX parameters, include betas parameter and it's shape is also (1,10). I also get some SMPLH parameters and the shape of betas is (1,16), if I want to change the shape from (1, 10) -> (1, 16) ,what should I do? Or is it possible to change the betas' shape of SMPLH from (1,16) -> (1,10) while keeping the pose reasonable？
Please give me some advice