code: def re(ctx, x):
      x = ctx.convert(x)
      if hasattr(
          x, "real"
      ):  # py2.5 doesn't have .real/.imag for all numbers
          return x.real
      return x
  
imports: from ..libmp.backend import xrange
  import math
  import cmath
label_desc: Use image node_id 28 for calling a global function with example usage: re(ctx, x) and returns: x, x