while scanning a simple key
6:34:10 PM in 'string', line 199, column 11:
6:34:10 PM '10':$1000
6:34:10 PM ^
6:34:10 PM could not find expected ':'
6:34:10 PM in 'string', line 200, column 9:
6:34:10 PM "after":
6:34:10 PM ^