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import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-79))
r=w0.sketch().arc((-86,20),(-44,-12),(-35,-64)).segment((41,-64)).segment((41,-24)).segment((48,-24)).segment((48,5)).segment((41,5)).segment((41,45)).segment((-86,45)).close().assemble().finalize().extrude(-7).union(w0.workplane(offset=21/2).moveTo(88,75).cylinder(21,12)).union(w0.sketch().segment((-64,-83),(-47,-83)).arc((-22,-87),(2,-83)).segment((19,-83)).segment((19,-75)).arc((55,-9),(19,56)).segment((19,64)).segment((2,64)).arc((-22,68),(-47,64)).segment((-64,64)).segment((-64,56)).arc((-100,-9),(-64,-75)).close().assemble().finalize().extrude(165))