mock human input

        :param target: the element to input to
        :param content: the content
        :return:

def _mock_input(self, target, content):
        """
            mock human input

        :param target: the element to input to
        :param content: the content
        :return:
        """
        content = helper.to_str(content)
        for w in content:
            target.send_keys(w)
            rand_block(0.01, 0.01)