code: func (s *State) OutputValue(addr addrs.AbsOutputValue) *OutputValue {
  	ms := s.Module(addr.Module)
  	if ms == nil {
  		return nil
  	}
  	return ms.OutputValues[addr.OutputValue.Name]
  }
docs: // OutputValue returns the state for the output value with the given address,
  // or nil if no such output value is tracked in the state.