code: def test_default_dashboard_utilizes_global_filters():
      for panel in DEFAULT_GRAFANA_PANELS:
          for target in panel.targets:
              assert "{global_filters}" in target.expr
  
file_path: ray/python/ray/tests/test_metrics_head.py
imports: import json
  import logging
  import os
  import pytest
  import sys
  import tempfile
  from ray.dashboard.modules.metrics.dashboards.default_dashboard_panels import DEFAULT_GRAFANA_PANELS
  from ray.dashboard.modules.metrics.dashboards.serve_dashboard_panels import SERVE_GRAFANA_PANELS
  from ray.tests.conftest import _ray_start
label_desc: Use image node_id 7 for calling a global function with example usage: test_default_dashboard_utilizes_global_filters() without return types