code: def function5x1(x):
      """a 5x1 test function
  
      For example:
        >>> function5x1([1,2,3,4,5])
        [13.922847983320086]
      """
      return function5x3(x)[:1]
  
label_desc: Use image node_id 3 for calling a global function with example usage: function5x1(x) and returns: function5x3