code: def run_migrations_offline():
      
      url = config.get_main_option("sqlalchemy.url")
      context.configure(
          url=url, target_metadata=target_metadata, literal_binds=True
      )
  
      with context.begin_transaction():
          context.run_migrations()
docs: Run migrations in 'offline' mode.
  
      This configures the context with just a URL
      and not an Engine, though an Engine is acceptable
      here as well.  By skipping the Engine creation
      we don't even need a DBAPI to be available.
  
      Calls to context.execute() here emit the given string to the
      script output.