code: @Override
      public Object apply(Object value, Object... params) {
  
          String original = super.asString(value);
  
          String delimiter = super.asString(super.get(0, params));
  
          return original.split("(?<!^)" + Pattern.quote(delimiter));
      }
docs: /*
  split(input, delimiter = ' ')
  
  Split a string on a matching pattern
  
  E.g. {{ "a~b" | split:'~' | first }} #=> 'a'