code: def _hue2rgb(v1, v2, vH):
      """Private helper function (Do not call directly)
  
      :param vH: rotation around the chromatic circle (between 0..1)
  
      """
  
      while vH < 0:
          vH += 1
      while vH > 1:
          vH -= 1
  
      if 6 * vH < 1:
          return v1 + (v2 - v1) * 6 * vH
      if 2 * vH < 1:
          return v2
      if 3 * vH < 2:
          return v1 + (v2 - v1) * ((2.0 / 3) - vH) * 6
  
      return v1
  
imports: from __future__ import with_statement, print_function
  import hashlib
  import re
  import sys
label_desc: Use image node_id 3 for calling a global function with example usage: _hue2rgb(v1, v2, vH) and returns: v1, unknown, v2, unknown