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import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-35))
r=w0.sketch().arc((-26,-22),(14,-43),(-8,-82)).arc((97,-18),(-26,-22)).assemble().finalize().extrude(23).union(w0.sketch().segment((-100,93),(-97,89)).segment((-90,94)).segment((-93,100)).segment((-97,97)).segment((-95,97)).segment((-95,93)).close().assemble().finalize().extrude(70))