code: def euclidean(a, b):
      
      a = np.asanyarray(a, dtype=np.float64)
      b = np.asanyarray(b, dtype=np.float64)
      return np.sqrt(((a - b) ** 2).sum())
docs: Euclidean distance between vectors a and b.
  
      Parameters
      ------------
      a : (n,) float
         First vector
      b : (n,) float
         Second vector
  
      Returns
      ------------
      distance : float
          Euclidean distance between A and B