code: def __init__(
      self,
      num_class,
      num_layers,
      hidden_size,
      act="relu",
      name="GraphSage",
  ):
      self.num_class = num_class
      self.num_layers = num_layers
      self.hidden_size = hidden_size
      self.act = act
      self.name = name
  
imports: import os
  import re
  import time
  from random import random
  from functools import reduce, partial
  import numpy
  import multiprocessing
  import paddle
  import paddle.fluid
  import paddle.fluid
  import paddle.fluid.layers
  from pgl.graph_wrapper import GraphWrapper
  from pgl.layers.conv import gcn, gat
  from pgl.utils import paddle_helper
label_desc: Use image node_id 1 to create a new GraphSageModel object from inherited base classes: object with example: obj = GraphSageModel(num_class, num_layers, hidden_size, act, name)