code: def pack_ieee(value):
      """Packs float ieee binary representation into 4 unsigned int8
  
      Returns
      -------
      pack: array
          packed interpolation kernel
      """
      return np.fromstring(value.tobytes(), np.ubyte).reshape(
          (value.shape + (4,))
      )
  
file_path: vispy/vispy/io/datasets.py
imports: import numpy
  from os import path
  from ..util import load_data_file
label_desc: Use image node_id 4 for calling a global function with example usage: pack_ieee(value) and returns: np