code: def _add_level(
      word,
      start,
      level,
      window_ind,
      window_size,
      series_length,
      level_bits,
  ):
      num_quadrants = pow(2, level)
      quadrant = start + int(
          (window_ind + int(window_size / 2))
          / int(series_length / num_quadrants)
      )
      return (word << level_bits) | quadrant, num_quadrants
  
file_path: sktime/sktime/transformations/panel/dictionary_based/_sfa_numba.py
imports: import math
  import numpy
  from sktime.utils.numba.njit import njit
label_desc: Use image node_id 4 for calling a global function with example usage: _add_level(word, start, level, window_ind, window_size, series_length, level_bits) and returns: unknown,  num_quadrants