code: def p(g, f, t, exp):
      if exp != g.get_edge(f, t):
          print("!Failed:", end=" ")
      else:
          print("Passed:", end=" ")
      print(
          "{}->{}:{} (expected: {})".format(f, t, g.get_edge(f, t), exp)
      )
  
imports: from maxflow import GraphDouble, GraphFloat, GraphInt
  import random
label_desc: Use image node_id 3 for calling a global function with example usage: p(g, f, t, exp) without return types