def METHOD_NAME(self, project_id):
    copy_fields = (
        'name', 'type', 'section', 'order', 'max_characters', 'mandatory',
        'help_text', 'dropdown_options',
    )
    project_custom_field = ProjectCustomField(
        project_id=project_id,
        **{field: getattr(self, field) for field in copy_fields}
    )
    return project_custom_field