code: def _variant_levels(level, variant):
          
          return (level + variant, level + variant) \
             if variant != 0 else (variant, level)
docs: Gets the level for the variant.
  
          :param int level: the current variant level
          :param int variant: the value for this level if variant
  
          :returns: a level for the object and one for the function
          :rtype: int * int