code: def iseq(start=0, stop=None, inc=1):
      """
      Generate integers from start to (and including!) stop,
      with increment of inc. Alternative to range/xrange.
      """
      if stop is None:  # allow isequence(3) to be 0, 1, 2, 3
          # take 1st arg as stop, start as 0, and inc=1
          stop = start
          start = 0
          inc = 1
      return arange(start, stop + inc, inc)
  
imports: import time
  from numpy import arange, newaxis, sqrt, zeros
label_desc: Use image node_id 1 for calling a global function with example usage: iseq(start, stop, inc) and returns: arange