Chaining PWM driver


I need help chaining my PWM drivers in I2C. My IC is the PCA9635 which is almost identical to the PCA9685 16ch pwm driver from adafruit Chaining Drivers | Adafruit PCA9685 16-Channel Servo Driver | Adafruit Learning System

On the guide, I can set different drivers easily. However, for the PCA9635, I could not figure out how to do it with the library I am using. GitHub - rambo/pca9635: Arduino library for controlling PCA9635 I2C LED drivers

To use two adafruit boards, all I need to do is use this:

Adafruit_PWMServoDriver pwm1 = Adafruit_PWMServoDriver(0x40);
Adafruit_PWMServoDriver pwm2 = Adafruit_PWMServoDriver(0x41);

pwm1.setPWM(15, 1024, 3072)
pwm2.setPWM(15, 1024, 3072)

What would I need to do to set up the same thing for the PCA9635 library?