def in_tmux():
    return bool(os.getenv("TMUX"))
Fetch all new articles from the given groups since the
dataset/ETHPy150Open ton1517/ttop/ttop/tmux.py/in_tmux--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/news/nntp.py/UsenetClientProtocol.__init__