code: def Artifacts(self, os_name=None, cpe=None, label=None):
      
      hit = lambda x: x[0] == x[1] or not x[0]
      seq = [(self.os_name, os_name), (self.cpe, cpe), (self.label, label)]
      return all(map(hit, seq))
docs: Whether the conditions applies, modulo host data.
  
      Args:
        os_name: An OS string.
        cpe: A CPE string.
        label: A label string.
  
      Returns:
        True if os_name, cpe or labels match. Empty values are ignored.