code: def main():
      print("\nGRAPHINT")
      test(GraphInt)
      print("\nGRAPHFLOAT")
      test(GraphFloat)
      print("\nGRAPHDOUBLE")
      test(GraphDouble)
      print("\nADDITIONAL TESTS")
      test_sum(GraphDouble)
      test_multiple_arcs(GraphDouble)
      test_overflow(GraphDouble)
  
file_path: medpy/lib/maxflow/src/sum_edge_test.py
imports: from maxflow import GraphDouble, GraphFloat, GraphInt
  import random
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types