human
Solve the following python programming problem given the following code:
@ handler.authenticated () 
@ handler.asynchronous (datastore = True, obj_store = True) 
def post(self, method_name) : 
    'Parses the JSON request body, validates it, and invokes the
    method as specified in the request URI. On completion, the
    response is returned as a JSON-encoded HTTP response body.
    ' 
    def _OnSuccess(method, start_time, response_dict) : 
        validictory.validate (response_dict, method.response) 
        self.set_status (200) 
        self.set_header ('Content-Type', 'application/json.
charset=UTF-8') 
        self.write (response_dict) 
        request_time = (time.time () - start_time) 
        logging.debug (('serviced %s request in %.4fs: %s' % (method_name, request_time, response_dict))) 
        self.finish () 
def _OnException(type, value, tb) : 
        (status, message) = www_util.HTTPInfoFromException (value) 
        self.set_status (status) 
        if (status == 500) : 
            logging.error (('failure processing %s:
%s' % (method_name, self.request.body)), exc_info = (type, value, tb)) 
error_dict = { 
            'error' : { 
                'method' : method_name, 
                'message' : ('%s %s' % (type, value)), 
}, 
} 
        validictory.validate (error_dict, json_schema.ERROR_RESPONSE) 
        self.set_header ('Content-Type', 'application/json.
charset=UTF-8') 
        self.write (error_dict) 
        self.finish () 
start_time = time.time () 
    if (not AdminServiceHandler.SERVICE_MAP.has_key (method_name)) : 
        self.send_error (status_code = 501) 
        return 
content_type = self.request.headers ['Content-Type'] 
    if (not content_type.startswith ('application/json')) : 
        self.send_error (status_code = 415) 
        return 
method = AdminServiceHandler.SERVICE_MAP [method_name] 
    with util.MonoBarrier (partial (_OnSuccess, method, start_time), on_exception = _OnException) as b : 
        request_dict = json.loads (_OnException.request.body) 
        validictory.validate (request_dict, method.request) 
       ...

    
    

    Fix the buggy line: request_dict = json.loads (_OnException.request.body)
assistant
#Here is Python code to fix the buggy line: request_dict = json.

request_dict = json.loads (self.request.body)