code: def engine(request):
      """Engine configuration."""
      url = request.config.getoption("--sqlalchemy-connect-url")
      from sqlalchemy.engine import create_engine
  
      engine = create_engine(url)
      yield engine
      engine.dispose()
  
imports: import datetime
  import pytest
  from sacred.serializer import json
  from sacred.observers.sql import SqlObserver
  from sacred.observers.sql_bases import Host, Experiment, Run, Source, Resource
label_desc: Use image node_id 1 for calling a global function with example usage: engine(request) without return types