code: public Groundy arg(String key, ArrayList<CharSequence> value) {
      mArgs.putCharSequenceArrayList(key, value);
      return this;
    }
docs: Inserts an ArrayList<CharSequence> value into the mapping of this Bundle, replacing any
  existing value for the given key.  Either key or value may be null.
  
  @param key a String, or null
  @param value an ArrayList<CharSequence> object, or null