code: def _EnforceProcessMemoryLimit(self, memory_limit):
      
      # Resource is not supported on Windows.
      if resource:
        if memory_limit is None:
          memory_limit = 4 * 1024 * 1024 * 1024
        elif memory_limit == 0:
          memory_limit = resource.RLIM_INFINITY
  
        resource.setrlimit(resource.RLIMIT_DATA, (memory_limit, memory_limit))
docs: Enforces a process memory limit.
  
      Args:
        memory_limit (int): maximum number of bytes the process is allowed
            to allocate, where 0 represents no limit and None a default of
            4 GiB.