def set(self, type, offset, value):
        """
        Set the specified bit field and returns its old value.
        """
        self._command_stack.extend(['SET', type, offset, value])
        return self
def set ( self , type , offset , value ) : self . _command_stack . extend ( [ 'SET' , type , offset , value ] ) return self
Set the specified bit field and returns its old value.