code: public Groundy arg(String key, CharSequence[] value) {
      mArgs.putCharSequenceArray(key, value);
      return this;
    }
docs: Inserts a CharSequence array 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 a CharSequence array object, or null