The intense national interest in Kim Janey’s ascension that her stewardship of Boston could change, or begin to change, perception of the city. It could also change the way the Boston sees itself. But there are some important caveats attached to the Janey era — starting with the fact that it could end in November, when Boston holds the final election to replace former mayor Marty Walsh. Yawu Miller, the senior editor of the Bay State Banner, talks about what it’s been like as a Black Bostonian to watch the transfer of power from Walsh to Janey, and how the candidates who’ve already said they’re running can respond to the undeniable advantage Janey now enjoys. First, though, Janey gets some friendly advice from Jane Swift, who ran Massachusetts after Paul Cellucci became ambassador to Canada — and might have been elected in 2002, if Mitt Romney had turned his focus to Utah a bit earlier than he did.