code: def _prefix_confound_filter(prefix, all_compcor_name):
      """Get confound columns by prefix and acompcor mask.
  
      Parameters
      ----------
      prefix : :obj:`str`
          Prefix to use for compcor components.
      all_compcor_name : :obj:`list`
          List of all compcor components column names.
  
      Returns
      -------
      compcor_cols_filt : :obj:`list`
          List of compcor components column names filtered by prefix.
      """
      compcor_cols_filt = []
      for nn in range(len(all_compcor_name)):
          nn_str = str(nn).zfill(2)
          compcor_col = f"{prefix}_comp_cor_{nn_str}"
          compcor_cols_filt.append(compcor_col)
      return compcor_cols_filt
  
label_desc: Use image node_id 6 for calling a global function with example usage: _prefix_confound_filter(prefix, all_compcor_name) and returns: compcor_cols_filt