[Paraview] need some help reading data in pvpython

[Beach, Timothy A. (GRC-LTE0)[Vantage Partners, LLC]]

I’ve done some neat stuff with pvpython but I’m stuck on something really basic.  I’ve read a structured multi block dataset(plot3d).  Where do I find the number of blocks and the size of each block.  I’ve been using help and dir() but I haven’t found that info.
Thanks
Tim
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