def METHOD_NAME(self):
    files = self.get_user_files()
    user = {
        'id': self.id,
        'first_name': self.first_name,
        'last_name': self.last_name,
        'about_me': self.about_me
    }
    thumbnail_files = list(files.filter(file_category=civictechprojects.models.FileCategory.THUMBNAIL.value))
    if len(thumbnail_files) > 0:
        user['user_thumbnail'] = thumbnail_files[0].to_json()
    return user