code: def _make_lags(middle: int, delta: int) -> np.ndarray:
      """
      Create a set of lags around a middle point including +/- delta.
      """
      return np.arange(middle - delta, middle + delta + 1).tolist()
  
imports: from typing import List, Optional
  import numpy
  from pandas.tseries.frequencies import to_offset
  from gluonts.time_feature import norm_freq_str
label_desc: Use image node_id 1 for calling a global function with example usage: _make_lags(middle, delta) and returns: np