code: def test_graph_embed_pool():
      num_vertices = 100
      layer = dc.models.layers.GraphEmbedPoolLayer(num_vertices)
      config = layer.get_config()
      layer_copied = dc.models.layers.GraphEmbedPoolLayer.from_config(
          config
      )
  
      assert layer_copied.num_vertices == layer.num_vertices
  
imports: import deepchem
  import pytest
label_desc: Use image node_id 17 for calling a global function with example usage: test_graph_embed_pool() without return types