code: def remove(self, domain: str) -> None:
      if not self.get(domain):
          return
  
      self.content = re.sub(f"(.+)\s+{domain}\n", "", self.content)
      self.__write()
  
imports: import argparse
  from functools import cached_property
  import os
  from pathlib import Path
  import platform
  import re
  import sys
label_desc: Use image node_id 6 for calling the Hosts obj's underlying member method code with example usage: obj.remove(domain) without return types