code: def get_SZ_orient(self):
          
  
          tm_outdated = self._tm_signature != (self.radius, self.radius_type, 
              self.wavelength, self.m, self.axis_ratio, self.shape, self.ddelt, 
              self.ndgs)
          scatter_outdated = self._scatter_signature != (self.thet0, self.thet, 
              self.phi0, self.phi, self.alpha, self.beta, self.orient)
  
          orient_outdated = self._orient_signature != \
              (self.orient, self.or_pdf, self.n_alpha, self.n_beta)
          if orient_outdated:
              self._init_orient()
          
          outdated = tm_outdated or scatter_outdated or orient_outdated
  
          if outdated:
              (self._S_orient, self._Z_orient) = self.orient(self)
              self._set_scatter_signature()
  
          return (self._S_orient, self._Z_orient)
docs: Get the S and Z matrices using the specified orientation averaging.