code: def aperture_select(self, ra, dec, kwargs_aperture):
          
          if self._aperture_type == 'shell':
              bool_list = self.shell_select(ra, dec, **kwargs_aperture)
          elif self._aperture_type == 'slit':
              bool_list = self.slit_select(ra, dec, **kwargs_aperture)
          else:
              raise ValueError("aperture type %s not implemented!" % self._aperture_type)
          return bool_list
docs: returns a bool list if the coordinate is within the aperture (list)
          :param ra:
          :param dec:
          :return: