def exists(self):
        return Farmer.query.filter(Farmer.btc_addr ==
                                   self.btc_addr).count() > 0
A C{reactor.callLater} call scheduled from a C{gobject.timeout_add}
dataset/ETHPy150Open Storj/dataserv/dataserv/Farmer.py/Farmer.exists--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/internet/test/test_time.py/GlibTimeTestsBuilder.test_timeout_add