code: def example_point(self):
          
          return np.array([([self.n_meas] + [0] * (self.n_elements-1),)], dtype=self.dtype)
docs: Returns any single point guaranteed to be in the domain, but
          no other guarantees; useful for testing purposes.
          This is given as a size 1 ``np.array`` of type ``dtype``.
  
          :type: ``np.ndarray``