How to use the laspy.glviewer.VBO_Provider function in laspy

def read_data(self, mode, dim):
        if (np.max(self.file_object.x) - np.min(self.file_object.x)) < 1:
            means = np.array([np.mean(self.file_object.X, dtype = np.float64), 
                          np.mean(self.file_object.Y, dtype = np.float64), 
                          np.mean(self.file_object.Z, dtype = np.float64),
                          0,0,0])
            scaled = False
        else:
            means = np.array([np.mean(self.file_object.x, dtype = np.float64), 
                    np.mean(self.file_object.y, dtype = np.float64), 
                    np.mean(self.file_object.z, dtype = np.float64),
                    0,0,0])
            scaled = True
        
        self.N = len(self.file_object)
        self.data_buffer = VBO_Provider(self.file_object, 1000000, means, mode, dim, scaled)