old_contents: from typing import TYPE_CHECKING, List
  
  from django.conf import settings
  from django.core.checks import Error, register
  from django.utils.module_loading import import_string
  
  if TYPE_CHECKING:
      from .base_plugin import BasePlugin
  
  
  @register()
  def check_plugins(app_configs, **kwargs):
      """Confirm a correct import of plugins and manager."""
      errors = []
      check_manager(errors)
  
      plugins = settings.PLUGINS or []
  
      for plugin_path in plugins:
          check_single_plugin(plugin_path, errors)
  
      return errors
  
  
  def check_manager(errors: List[Error]):
      if not hasattr(settings, "PLUGINS_MANAGER") or not settings.PLUGINS_MANAGER:
          errors.append(Error("Settings should contain PLUGINS_MANAGER env"))
          return
  
      try:
          import_string(settings.PLUGINS_MANAGER)
      except ImportError:
          errors.append(
              Error("Plugins Manager path: %s doesn't exist" % settings.PLUGINS_MANAGER)
          )
  
  
  def check_single_plugin(plugin_path: str, errors: List[Error]):
      if not plugin_path:
          errors.append(Error("Wrong plugin_path %s" % plugin_path))
          return
      try:
          plugin_class = import_string(plugin_path)
      except ImportError:
          errors.append(Error("Plugin with path: %s doesn't exist" % plugin_path))
  
      if not errors:
          check_plugin_fields(["PLUGIN_ID"], plugin_class, errors)
  
  
  def check_plugin_fields(
      fields: List[str], plugin_class: "BasePlugin", errors: List[Error]
  ):
      for field in fields:
          if not getattr(plugin_class, field, None):
              errors.append(
                  Error(f"Missing field {field} for plugin - {plugin_class.__name__}")
              )
  
new_contents: from typing import TYPE_CHECKING, List
  
  from django.conf import settings
  from django.core.checks import Error, register
  from django.utils.module_loading import import_string
  
  if TYPE_CHECKING:
      from .base_plugin import BasePlugin
  
  
  @register()
  def check_plugins(app_configs, **kwargs):
      """Confirm a correct import of plugins and manager."""
      errors = []
      check_manager(errors)
  
      plugins = settings.PLUGINS or []
  
      for plugin_path in plugins:
          check_single_plugin(plugin_path, errors)
  
      return errors
  
  
  def check_manager(errors: List[Error]):
      if not hasattr(settings, "PLUGINS_MANAGER") or not settings.PLUGINS_MANAGER:
          errors.append(Error("Settings should contain PLUGINS_MANAGER env"))
          return
  
      try:
          import_string(settings.PLUGINS_MANAGER)
      except ImportError:
          errors.append(
              Error("Plugins Manager path: %s doesn't exist" % settings.PLUGINS_MANAGER)
          )
  
  
  def check_single_plugin(plugin_path: str, errors: List[Error]):
      if not plugin_path:
          errors.append(Error("Wrong plugin_path %s" % plugin_path))
          return
      try:
          plugin_class = import_string(plugin_path)
      except ImportError:
          errors.append(Error("Plugin with path: %s doesn't exist" % plugin_path))
  
      if not errors:
          check_plugin_fields(["PLUGIN_ID"], plugin_class, errors)
  
  
  def check_plugin_fields(
      fields: List[str], plugin_class: "BasePlugin", errors: List[Error]
  ):
      for field in fields:
          if not getattr(plugin_class, field, None):
              errors.append(
                  Error(
                      f"Missing field {field} for "
                      f"plugin - {plugin_class.__name__}"  # type: ignore
                  )
              )
  
subject: Add missing type ignore