class_docstr: Tests of GAT class
class_docstr_tok: ["Tests","of","GAT","class"]
code: def test_save_load(self, tmpdir):
      graph = example_graph(feature_size=self.F_in)
      gen = FullBatchNodeGenerator(
          graph, sparse=self.sparse, method=self.method
      )
      gat = GAT(
          layer_sizes=self.layer_sizes,
          activations=self.activations,
          attn_heads=self.attn_heads,
          generator=gen,
      )
  
      test_utils.model_save_load(tmpdir, gat)
  
imports: import pytest
  import scipy.sparse
  import tensorflow
  from tensorflow import keras
  from tensorflow.keras import backend
  from tensorflow.keras.layers import Input
  from stellargraph.mapper import FullBatchNodeGenerator, FullBatchLinkGenerator, GraphSAGENodeGenerator
  from stellargraph.layer import *
  from ..test_utils.graphs import example_graph
  from ..None import test_utils
label_desc: Use image node_id 11 for calling the Test_GAT obj's underlying member method code with example usage: obj.test_save_load(tmpdir) without return types