1 [ 2 {"name": "a", "args": {},"pid": 52, "ts": 9524, "cat": "foo", "tid": 53, 3 "ph": "B"}, 4 {"name": "a", "args": {},"pid": 52, "ts": 9560, "cat": "foo", "tid": 53, 5 "ph": "E"}, 6 {"name": "b", "args": {},"pid": 52, "ts": 9629, "cat": "foo", "tid": 53, 7 "ph": "B"}, 8 {"name": "b", "args": {},"pid": 52, "ts": 9631, "cat": "foo", "tid": 53, 9 "ph": "E"} 10 ]
