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import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-77))
r=w0.sketch().segment((-100,-69),(41,-69)).segment((41,-65)).arc((78,-34),(41,-2)).segment((41,88)).segment((-100,88)).close().assemble().finalize().extrude(103).union(w0.sketch().push([(-55,59)]).circle(28).push([(46,-34)]).circle(54).circle(40,mode='s').finalize().extrude(155))