code: def test_import_line_continuation(self):
      graph = pda.DepGraph()
      graph.ids["ray"] = 0
  
      with tempfile.TemporaryDirectory() as tmpdir:
          src_path = os.path.join(tmpdir, "continuation1.py")
          self.create_tmp_file(
              src_path,
              """
  import ray.rllib.env.\\
      mock_env
  b = 2
  """,
          )
          pda._process_file(graph, src_path, "ray")
  
      self.assertEqual(len(graph.ids), 2)
      print(graph.ids)
      # Shoud pick up the full module name.
      self.assertEqual(graph.ids["ray.rllib.env.mock_env"], 1)
      self.assertEqual(graph.edges[0], {1: True})
  
file_path: ray/ci/pipeline/py_dep_analysis_test.py
imports: import os
  import tempfile
  import unittest
  import py_dep_analysis
label_desc: Use image node_id 5 for calling the TestPyDepAnalysis obj's underlying member method code with example usage: obj.test_import_line_continuation() without return types