text: import numpy as np
  
  
  def CPSC2020_challenge(ECG, fs):
      """
      % This function can be used for events 1 and 2. Participants are free to modify any
      % components of the code. However the function prototype must stay the same
      % [S_pos,V_pos] = CPSC2020_challenge(ECG,fs) where the inputs and outputs are specified
      % below.
      %
      %% Inputs
      %       ECG : raw ecg vector signal 1-D signal
      %       fs  : sampling rate
      %
      %% Outputs
      %       S_pos : the position where SPBs detected
      %       V_pos : the position where PVCs detected
      %
      %
      %
      % Copyright (C) 2020 Dr. Chengyu Liu
      % Southeast university
      % chengyu@seu.edu.cn
      %
      % Last updated : 02-23-2020
  
      """
  
  #   ====== arrhythmias detection =======
  
      S_pos = np.zeros([1, ])
      V_pos = np.zeros([1, ])
  
      return S_pos, V_pos
  