code: def db(app_client):
      return app_client.ds.get_database("fixtures")
  
file_path: datasette/tests/test_internals_database.py
imports: from datasette.app import Datasette
  from datasette.database import Database, Results, MultipleValues
  from datasette.utils.sqlite import sqlite3
  from datasette.utils import Column
  from .fixtures import app_client, app_client_two_attached_databases_crossdb_enabled
  import pytest
  import time
  import uuid
label_desc: Use image node_id 1 for calling a global function with example usage: db(app_client) and returns: app_client