docs: def on_user_init(target, args, kwargs):
      """Provide hook on :class:`~invenio_accounts.models.User` initialization.
  
      Automatically convert a dict to a
      :class:`~.UserProfile` instance. This is needed
      during e.g. user registration where Flask-Security will initialize a
      user model with all the form data (which when Invenio-UserProfiles is
      enabled includes a ``profile`` key). This will make the user creation fail
      unless we convert the profile dict into a :class:`~.UserProfile` instance.
      """
      profile = kwargs.pop('profile', None)
      if profile is not None and not isinstance(profile, UserProfile):
          profile = UserProfile(**profile)
          if kwargs.get('id'):
              profile.user_id = kwargs['id']
          kwargs['profile'] = profile