code: def plugin_macro():
      ...
  
imports: from __future__ import annotations
  from flask import Blueprint
  from flask_appbuilder import BaseView
  from airflow.api_connexion.schemas.plugin_schema import PluginCollection, plugin_collection_schema, plugin_schema
  from airflow.hooks.base import BaseHook
  from airflow.models.baseoperatorlink import BaseOperatorLink
  from airflow.plugins_manager import AirflowPlugin
label_desc: Use image node_id 1 for calling a global function with example usage: plugin_macro() without return types