code: def test_trace(trace_debug):
      with make_app_client(
          settings={"trace_debug": trace_debug}
      ) as client:
          response = client.get(
              "/fixtures/simple_primary_key.json?_trace=1"
          )
          assert response.status == 200
  
      data = response.json
      if not trace_debug:
          assert "_trace" not in data
          return
  
      assert "_trace" in data
      trace_info = data["_trace"]
      assert isinstance(trace_info["request_duration_ms"], float)
      assert isinstance(trace_info["sum_trace_duration_ms"], float)
      assert isinstance(trace_info["num_traces"], int)
      assert isinstance(trace_info["traces"], list)
      traces = trace_info["traces"]
      assert len(traces) == trace_info["num_traces"]
      for trace in traces:
          assert isinstance(trace["type"], str)
          assert isinstance(trace["start"], float)
          assert isinstance(trace["end"], float)
          assert (
              trace["duration_ms"]
              == (trace["end"] - trace["start"]) * 1000
          )
          assert isinstance(trace["traceback"], list)
          assert isinstance(trace["database"], str)
          assert isinstance(trace["sql"], str)
          assert isinstance(
              trace.get("params"), (list, dict, None.__class__)
          )
  
      sqls = [trace["sql"] for trace in traces if "sql" in trace]
      # There should be a mix of different types of SQL statement
      expected = (
          "CREATE TABLE ",
          "PRAGMA ",
          "INSERT OR REPLACE INTO ",
          "INSERT INTO",
          "select ",
      )
      for prefix in expected:
          assert any(
              sql.startswith(prefix) for sql in sqls
          ), "No trace beginning with: {}".format(prefix)
  
      # Should be at least one executescript
      assert any(
          trace for trace in traces if trace.get("executescript")
      )
      # And at least one executemany
      execute_manys = [
          trace for trace in traces if trace.get("executemany")
      ]
      assert execute_manys
      assert all(
          isinstance(trace["count"], int) for trace in execute_manys
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_trace(trace_debug) without return types