code: def get_node_msindex(msinds, node_seed):
      
      if type(node_seed) == np.ndarray:
          seed_indexes = np.nonzero(node_seed)
      elif type(node_seed) == list:
          seed_indexes = node_seed
      else:
          seed_indexes = [node_seed]
  
      selected_nodes_msinds = msinds[seed_indexes]
      node_msindex = selected_nodes_msinds[0]
      return node_msindex
docs: Convert seeds-like selection of voxel to multiscale index.
      :param msinds: ndarray with indexes
      :param node_seed: ndarray with 1 where selected pixel is, or list of indexes in this array
      :return: multiscale index of first found seed