How can I get a profile Size for Weldment structural member via API?

Hello!

I have a Weldment assembly - lots of  structural members in the tree Named Structural Member 1/2/3 etc....

When you go to Edit Structural Member you can change a weldment profile:

Do you guys know how to get the structural member Size (circled above) via API?

Any ideas or links to similar topics very appreciated.

Thank you.

SolidworksApi macros