code: def getScreenRGB(self,screen_data=None):
          
          if(screen_data is None):
              width = ale_lib.getScreenWidth(self.obj)
              height = ale_lib.getScreenWidth(self.obj)
              screen_data = np.zeros(width*height,dtype=np.uint32)
          ale_lib.getScreenRGB(self.obj,as_ctypes(screen_data))
          return screen_data
docs: This function fills screen_data with the data
          screen_data MUST be a numpy array of uint32/int32. This can be initialized like so:
          screen_data = np.array(w*h,dtype=np.uint32)
          Notice, it must be width*height in size also
          If it is None, then this function will initialize it