Problem pov l432kc

Hello as part of our project we must achieve persistence of vision with an adafruit led strip, however we have the following error:
Error: Qualified reference to ‘Adafruit_DotStar’ is a constructor name rather than a type in this context in “main.cpp”, Line: 14, Col: 20
here is our program:

/* mbed Microcontroller Library

  • Copyright © 2019 ARM Limited
  • SPDX-License-Identifier: Apache-2.0
    */

#include “mbed.h”
#include “platform/mbed_thread.h”
#include “DotStar.h”
#include “SPI.h”
#define NUMPIXELS 32 // Number of LEDs in strip
// Here’s how to control the LEDs from any two pins:
#define DATAPIN 3
#define CLOCKPIN 4
Adafruit_DotStar:: Adafruit_DotStar.strip(NUMPIXELS, DATAPIN, CLOCKPIN, DOTSTAR_BRG);

// Blinking rate in milliseconds
#define BLINKING_RATE_MS TA/8
#define Perimetre 2.07
signed short ILS=0;
signed short vitesse=0;
signed short TT= (Perimetre/vitesse)*1000 ;// on multiplie par 1000 pour mettre le temps en ms.
signed short TA=TT/4; // car on veut afficher seulement sur les ¼ supérieur de la roue.
signed short TR=TT-TA; // afin de déterminer le temps de retards pour différente vitesse de pédalage.

Timer t;
void setup()
{
strip.begin();
strip.setPixelColor(0, 255, 127, 0);
strip.show(); // Initialize all pixels to ‘off’
}

Hello,

Maybe change

to

Adafruit_DotStar strip(NUMPIXELS, DATAPIN, CLOCKPIN, DOTSTAR_BRG);

BR, Jan