code: def sql_obs(session, engine):
      return SqlObserver.create_from(engine, session)
  
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 3 for calling a global function with example usage: sql_obs(session, engine) and returns: SqlObserver