code: public StringGrabber appendRepeat(String str, int repeatCount) {
  		for (int i = 0; i < repeatCount; i++) {
  			if (str != null) {
  				sb.append(str);
  			}
  		}
  		return StringGrabber.this;
  	}
docs: Append a string to be repeated
  
  @see StringGrabber#insertRepeat(String);
  @param str
  @param repeatCount
  @return