code: def match(self, version):
          
          if isinstance(version, string_types):
              version = self.version_class(version)
          for operator, constraint, prefix in self._parts:
              f = self._operators.get(operator)
              if isinstance(f, string_types):
                  f = getattr(self, f)
              if not f:
                  msg = ('%r not implemented '
                         'for %s' % (operator, self.__class__.__name__))
                  raise NotImplementedError(msg)
              if not f(version, constraint, prefix):
                  return False
          return True
docs: Check if the provided version matches the constraints.
  
          :param version: The version to match against this instance.
          :type version: String or :class:`Version` instance.