docs: def _merge_ensemble(ensemble, col_nums, col_vals):
      """
      The second column is not typical.
      "number" is a list of column numbers and "values" is an array of column values.
      Before we can write this to csv, it has to match the format the writer expects.
      :param dict ensemble: First column data
      :param list col_nums: Second column numbers. list of ints
      :param list col_vals: Second column values. list of lists
      :return dict:
      """
      try:
          # Loop for each column available
          for num in col_nums:
              # first column number in col_nums is usually "2", so backtrack once since ensemble already has one entry
              # col_vals is 0-indexed, so backtrack 2 entries
              ensemble[num-1] = col_vals[num - 2]
  
      except IndexError:
          logger_csvs.error("merge_ensemble: IndexError: index out of range")
  
      return ensemble