code: def run_migrations_offline() -> None:
      """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.
  
      """
      url = config.get_main_option("sqlalchemy.url")
      context.configure(
          url=url,
          target_metadata=target_metadata,
          literal_binds=True,
          dialect_opts={"paramstyle": "named"},
      )
  
      with context.begin_transaction():
          context.run_migrations()
  
file_path: alembic/alembic/templates/async/env.py
imports: import asyncio
  from logging.config import fileConfig
  from sqlalchemy import pool
  from sqlalchemy.engine import Connection
  from sqlalchemy.ext.asyncio import async_engine_from_config
  from alembic import context
label_desc: Use image node_id 1 for calling a global function with example usage: run_migrations_offline() without return types