code: def deHexStr(hexdata):
      """Convert a hex string to binary data."""
      hexdata = strjoin(hexdata.split())
      if len(hexdata) % 2:
          hexdata = hexdata + "0"
      data = []
      for i in range(0, len(hexdata), 2):
          data.append(bytechr(int(hexdata[i : i + 2], 16)))
      return bytesjoin(data)
  
imports: import ast
  import string
label_desc: Use image node_id 2 for calling a global function with example usage: deHexStr(hexdata) and returns: bytesjoin