code: def test_url_param_default() -> None:
      with app.test_request_context():
          cache = ExtraCache()
          assert cache.url_param("foo", "bar") == "bar"
  
imports: import json
  from typing import Any
  import pytest
  from sqlalchemy.dialects.postgresql import dialect
  from superset import app
  from superset.exceptions import SupersetTemplateException
  from superset.jinja_context import ExtraCache, safe_proxy
label_desc: Use image node_id 8 for calling a global function with example usage: test_url_param_default() without return types