anchor.diff:    case IgnoreNulls of
       true -> % Ignoring null input values
         case (ActiveInputs > 0) of
  -        true  -> % At least one input was active, return the current sum
  +        true  -> 
  +          % At least one input was active, return the current sum
             {ok, Sum};
  +
           false -> 
             % No active input values, all inputs must be null, 
             % Even though we are ignoring nulls, output is still null
  
positive.code: -export([create/2, create/4, create/5, upgrade/1, initialize/1, execute/2, delete/1, handle_info/2]).
  
  
  groups() -> [logic].
  
  description() -> "Sum All Input Values".
  
  
negative.code: 
      false -> % Not ignoring null input values
        case (ActiveInputs < NumOfInputs) of
          true -> 
            % At least one input was null, return null
            {ok, null};
        
          false -> 
            % No inputs were null, return Sum
            {ok, Sum}
        end
    end.
  