code: def register_example_plugin() -> None:
      """The Hydra user should call this function before invoking @hydra.main"""
      Plugins.instance().register(ExampleRegisteredPlugin)
  
imports: from hydra.core.plugins import Plugins
  from hydra.plugins.plugin import Plugin
label_desc: Use image node_id 1 for calling a global function with example usage: register_example_plugin() without return types