check-ios-bus/Utilities/platform/2/templates/section-generated-pipe-toggleNil

      ctrl.%PIPE%(
        dbg: "%SHORT_SRC%",
        sub: %SUB%,
        %SRC%.eraseToAnyPublisher(),
        { $0.%NAME% = $1 },
        { m, _ in m.%NAME% = nil }
      )