code: def char_array_to_string(arr):
      """
      Converts a NumPy array of byte-long ASCII codes into an ASCII string.
      e.g. [65, 67, 71, 84] becomes "ACGT".
      """
      return arr.tostring().decode("ascii")
  
imports: from __future__ import division, print_function
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: char_array_to_string(arr) and returns: arr