code: def _ensure_decoded(s):
      """if we have bytes, decode them to unicode"""
      if isinstance(s, (np.bytes_, bytes)):
          s = s.decode(pd.get_option("display.encoding"))
      return s
  
imports: import numpy
  from pandas.compat import reduce
  import pandas
label_desc: Use image node_id 1 for calling a global function with example usage: _ensure_decoded(s) and returns: s