(self, ptr, length, callback)
def callback(ptr, data):
def callback(ptr, data):
def callback ( ptr data ) :
def read_memory_async(self, ptr, length, callback):
        """
        def callback(ptr, data):
        """
        self.io.read_async(ptr, length, callback)
def read_memory_async ( self , ptr , length , callback ) : self . io . read_async ( ptr , length , callback )