Special handler for hostname change on commit operation. Also handles username removal
        which prompts for confirmation (username removal prompts for each user...)

def _commit_handler(self, cmd):
        """
        Special handler for hostname change on commit operation. Also handles username removal
        which prompts for confirmation (username removal prompts for each user...)
        """
        current_prompt = self.device.find_prompt().strip()
        terminating_char = current_prompt[-1]
        # Look for trailing pattern that includes '#' and '>'
        pattern1 = r"[>#{}]\s*$".format(terminating_char)
        # Handle special username removal pattern
        pattern2 = r".*all username.*confirm"
        patterns = r"(?:{}|{})".format(pattern1, pattern2)
        output = self.device.send_command_expect(cmd, expect_string=patterns)
        loop_count = 50
        new_output = output
        for i in range(loop_count):
            if re.search(pattern2, new_output):
                # Send confirmation if username removal
                new_output = self.device.send_command_timing(
                    "\n", strip_prompt=False, strip_command=False
                )
                output += new_output
            else:
                break
        # Reset base prompt in case hostname changed
        self.device.set_base_prompt()
        return output