[Gmsh] Gmsh how to extract the node ID's on a given 3D Mesh Boundary Surface

[Zuheyr Alsalihi]

Hello,
Is there a way to get the node ID's of  the elements that lie on a boundary
surface in a 3d solid mesh where I mark the
surface by creating a physical surface.

Thank you for reading!

Best,
-- 
Zuheyr Alsalihi
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