FunctionResult 类型

{
    'function_name': 'hello',
    'return_result': 'hello serverless!',
    'is_successful': True,
    'start_time': '2020-01-10 18:05:45',
    'run_duration': 100,
    'bill_duration': 100,
    'usage_memory_size': 32,
    'run_log': ...,
    'log_level': None,
    'log_source': None,
    'request_id': 'bc309eaa-6d64-11e8-a7fe-5254000b4175'
}