How to use the picoscope.ps2000a.PS2000a function in picoscope

def __init__(self, serialNumber=None, connect=True):
        """Load DLL etc."""
        if platform.system() == 'Linux':
            from ctypes import cdll
            self.lib = cdll.LoadLibrary("lib" + self.LIBNAME + ".so")
        elif platform.system() == 'Darwin':
            self.lib = self.loadLibraryDarwin("lib" + self.LIBNAME + ".dylib")
        else:
            from ctypes import windll
            self.lib = windll.LoadLibrary(str(self.LIBNAME + ".dll"))

        self.resolution = self.ADC_RESOLUTIONS["8"]

        super(PS2000a, self).__init__(serialNumber, connect)