25 from ._geom 
import Angle, AngleUnit
 
   32         if isinstance(other, (Angle, AngleUnit)):
 
   33             raise NotImplementedError
 
   34         return AngleUnit._mul(self, other)
 
   37         if isinstance(other, (Angle, AngleUnit)):
 
   38             raise NotImplementedError
 
   39         return AngleUnit._rmul(self, other)
 
   42         return (AngleUnit, (1.0*self,))