Get a new query builder that only includes soft deletes

        :type cls: orator.orm.model.Model

        :rtype: orator.orm.builder.Builder

def only_trashed(cls):
        """
        Get a new query builder that only includes soft deletes

        :type cls: orator.orm.model.Model

        :rtype: orator.orm.builder.Builder
        """
        instance = cls()

        column = instance.get_qualified_deleted_at_column()

        return instance.new_query_without_scope(SoftDeletingScope()).where_not_null(
            column
        )