code: def test_load_fb15k():
      fb15k = load_fb15k()
      assert len(fb15k["train"]) == 483142
      assert len(fb15k["valid"]) == 50000
      assert len(fb15k["test"]) == 59071
  
file_path: AmpliGraph/tests/ampligraph/datasets/test_datasets.py
imports: from ampligraph.datasets import load_wn18, load_fb15k, load_fb15k_237, load_yago3_10, load_wn18rr, load_wn11, load_fb13
  from ampligraph.datasets.datasets import _clean_data
  import os
  import numpy
  import pytest
label_desc: Use image node_id 4 for calling a global function with example usage: test_load_fb15k() without return types