make Query classes?

brief.py

def fetch_main_briefs():
    """Fetch list of dict result set from alchemy database"""
    q = session.query(BriefTable.briefid,
                      BriefTable.brief_name,
                      BriefTable.activestatus)
    q = q.filter(BriefTable.parentid == None)  # todo abstract this out into a clauses list to prevent duplication
    q = q.filter(or_(BriefTable.briefName_alias == '', BriefTable.briefName_alias == None))
    result_set = [result.__dict__ for result in q.all()]
    return result_set

def fetch_brief_tags():
    q = session.query(BriefTable.briefid,
                      BriefTagsTable.tag_name)
    q = q.filter(BriefTable.parentid == None)
    q = q.filter(or_(BriefTable.briefName_alias == '', BriefTable.briefName_alias == None))
    q = q.filter(BriefTable.briefid == LinkBriefTagTable.briefid) \
        .filter(LinkBriefTagTable.tagid == BriefTagsTable.tagid)
    result_set = [result.__dict__ for result in q.all()]
    return result_set

Could I write a class such that I could do

q = MainBriefQuery()
result_set = q.execute()