old_contents: import importlib
  import pkgutil
  
  from commitizen.cz.conventional_commits import ConventionalCommitsCz
  from commitizen.cz.customize import CustomizeCommitsCz
  from commitizen.cz.jira import JiraSmartCz
  
  registry = {
      "cz_conventional_commits": ConventionalCommitsCz,
      "cz_jira": JiraSmartCz,
      "cz_customize": CustomizeCommitsCz,
  }
  plugins = {
      name: importlib.import_module(name).discover_this  # type: ignore
      for finder, name, ispkg in pkgutil.iter_modules()
      if name.startswith("cz_")
  }
  
  registry.update(plugins)
  
new_contents: import importlib
  import pkgutil
  from typing import Dict, Type
  
  from commitizen.cz.base import BaseCommitizen
  from commitizen.cz.conventional_commits import ConventionalCommitsCz
  from commitizen.cz.customize import CustomizeCommitsCz
  from commitizen.cz.jira import JiraSmartCz
  
  registry: Dict[str, Type[BaseCommitizen]] = {
      "cz_conventional_commits": ConventionalCommitsCz,
      "cz_jira": JiraSmartCz,
      "cz_customize": CustomizeCommitsCz,
  }
  plugins = {
      name: importlib.import_module(name).discover_this  # type: ignore
      for finder, name, ispkg in pkgutil.iter_modules()
      if name.startswith("cz_")
  }
  
  registry.update(plugins)
  
subject: add type annotation to registry