def create_export_task(taskName=None, logGroupName=None,
    logStreamNamePrefix=None, fromTime=None, to=None, destination=None,
    destinationPrefix=None):
    """
    Creates an export task, which allows you to efficiently export data from a log group to an Amazon S3 bucket.
    This is an asynchronous call. If all the required information is provided, this operation initiates an export task and responds with the ID of the task. After the task has started, you can use  DescribeExportTasks to get the status of the export task. Each account can only have one active (RUNNING or PENDING ) export task at a time. To cancel an export task, use  CancelExportTask .
    You can export logs from multiple log groups or multiple time ranges to the same S3 bucket. To separate out log data for each export task, you can specify a prefix that will be used as the Amazon S3 key prefix for all exported objects.
    See also: AWS API Documentation
    
    
    :example: response = client.create_export_task(
        taskName='string',
        logGroupName='string',
        logStreamNamePrefix='string',
        fromTime=123,
        to=123,
        destination='string',
        destinationPrefix='string'
    )
    
    
    :type taskName: string
    :param taskName: The name of the export task.

    :type logGroupName: string
    :param logGroupName: [REQUIRED]
            The name of the log group.
            

    :type logStreamNamePrefix: string
    :param logStreamNamePrefix: Export only log streams that match the provided prefix. If you don't specify a value, no prefix filter is applied.

    :type fromTime: integer
    :param fromTime: [REQUIRED]
            The start time of the range for the request, expressed as the number of milliseconds since Jan 1, 1970 00:00:00 UTC. Events with a timestamp earlier than this time are not exported.
            

    :type to: integer
    :param to: [REQUIRED]
            The end time of the range for the request, expressed as the number of milliseconds since Jan 1, 1970 00:00:00 UTC. Events with a timestamp later than this time are not exported.
            

    :type destination: string
    :param destination: [REQUIRED]
            The name of S3 bucket for the exported log data. The bucket must be in the same AWS region.
            

    :type destinationPrefix: string
    :param destinationPrefix: The prefix used as the start of the key for every object exported. If you don't specify a value, the default is exportedlogs .

    :rtype: dict
    :return: {
        'taskId': 'string'
    }
    
    
    """
    pass
