@abstractmethod
  def distance(self, vec1, vec2):
    if not isinstance(vec1, np.ndarray) or not isinstance(vec2, np.ndarray):
      raise TypeError("type of vec1 or vec2 is not numpy.ndarray")
    if vec1.ndim is not 1 or vec2.ndim is not 1:
      raise WrongVecError("vec1 or vec2 is not one line array")
    if vec1.size != vec2.size:
      raise WrongVecError("vec1 or vec2 is not same size")    
    pass
#end Distance
Mounts a BDE container. Uses key material provided by the :attr:`keys` attribute. The key material should be
dataset/ETHPy150Open jasonwbw/DensityPeakCluster/distance/distance.py/Distance.distance--crossover with--dataset/ETHPy150Open ralphje/imagemounter/imagemounter/volume.py/Volume._open_bde_container