test_logs.log

{"datetime": {"delta": 0.0, "datetime": "2018-11-25 08:29:25", "elapsed": 0.0}, "params": {"y": 1.3219469606529488, "x": 2.8340440094051482}, "target": -7.135455292718879}
{"datetime": {"delta": 0.001301, "datetime": "2018-11-25 08:29:25", "elapsed": 0.001301}, "params": {"y": -1.1860045642089614, "x": 2.0002287496346898}, "target": -7.779531005607566}
{"datetime": {"delta": 1.075242, "datetime": "2018-11-25 08:29:26", "elapsed": 1.076543}, "params": {"y": 3.0, "x": 4.0}, "target": -19.0}
{"datetime": {"delta": 0.239797, "datetime": "2018-11-25 08:29:26", "elapsed": 1.31634}, "params": {"y": -2.412527795983739, "x": 2.3776144540856503}, "target": -16.29839645063864}
{"datetime": {"delta": 0.247293, "datetime": "2018-11-25 08:29:26", "elapsed": 1.563633}, "params": {"y": -0.005822117636089974, "x": 2.104665051994087}, "target": -4.441293113411222}