def __init__(self, log_group_name, event_dict):
self.log_group_name = log_group_name<EOL>if not event_dict:<EOL><INDENT>return<EOL><DEDENT>self.log_stream_name = event_dict.get('<STR_LIT>')<EOL>self.message = event_dict.get('<STR_LIT:message>', '<STR_LIT>')<EOL>self.timestamp_millis = event_dict.get('<STR_LIT>')<EOL>if self.timestamp_millis:<EOL><INDENT>self.timestamp = timestamp_to_iso(int(self.timestamp_millis))<EOL><DEDENT>
Creates instance of the class

Parameters
----------
event_dict : dict
    Dict of log event data returned by CloudWatch Logs API.
    https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_FilteredLogEvent.html