code: def test_find_forward_paths_ignores_loops(employee_df):
      dataframes = {"employees": (employee_df, "id")}
      relationships = [("employees", "id", "employees", "manager_id")]
      es = EntitySet(dataframes=dataframes, relationships=relationships)
  
      paths = list(es.find_forward_paths("employees", "employees"))
      assert len(paths) == 1
      assert paths[0] == []
  
imports: import pandas
  import pytest
  from featuretools import EntitySet
  from featuretools.tests.testing_utils import backward_path, forward_path
label_desc: Use image node_id 16 for calling a global function with example usage: test_find_forward_paths_ignores_loops(employee_df) without return types