code: def _interleave(x):
      x = (x | (x << 8)) & 0x00FF00FF
      x = (x | (x << 4)) & 0x0F0F0F0F
      x = (x | (x << 2)) & 0x33333333
      x = (x | (x << 1)) & 0x55555555
      return x
  
imports: import numpy
label_desc: Use image node_id 4 for calling a global function with example usage: _interleave(x) and returns: x