code: @SafeVarargs
      private final <O extends OperatorHelper> void initOperators(Map<Name, List<O>> opsMap, O... ops) {
          for (O o : ops) {
              Name opName = o.name;
              List<O> helpers = opsMap.getOrDefault(opName, List.nil());
              opsMap.put(opName, helpers.prepend(o));
          }
      }
docs: Complete the initialization of an operator helper by storing it into the corresponding operator map.