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import cadquery as cq
w0=cq.Workplane('YZ',origin=(-15,0,0))
r=w0.workplane(offset=-38/2).moveTo(-63,36).cylinder(38,37).union(w0.sketch().push([(1,20)]).circle(6).push([(88,-61)]).circle(12).finalize().extrude(56)).union(w0.sketch().segment((-11,-62),(12,-70)).arc((18,-64),(26,-62)).segment((32,-43)).segment((5,-43)).segment((5,-26)).arc((63,25),(2,-24)).close().assemble().push([(33.5,0)]).rect(45,44,mode='s').finalize().extrude(68))