#pragma once
namespace PX4 {
class PX4Scheduler;
class PX4UARTDriver;
class PX4Storage;
class PX4RCInput;
class PX4RCOutput;
class PX4AnalogIn;
class PX4AnalogSource;
class PX4Util;
class PX4GPIO;
class PX4DigitalSource;
class NSHShellStream;
class PX4I2CDriver;
class PX4_I2C;
class Semaphore;
}