code: def set_seed(seed):
      """Set global random seed."""
      random.seed(seed)
      np.random.seed(seed)
  
file_path: PGL/legacy/examples/line/multi_class.py
imports: import argparse
  import time
  import math
  import os
  import random
  import numpy
  import sklearn.metrics
  from sklearn.metrics import f1_score
  import pgl
  from pgl.utils import op
  import paddle.fluid
  import paddle.fluid.layers
  from pgl.utils.logger import log
  from data_loader import FlickrDataset
label_desc: Use image node_id 2 for calling a global function with example usage: set_seed(seed) without return types