def reboot_instances(DryRun=None, InstanceIds=None):
    """
    Requests a reboot of one or more instances. This operation is asynchronous; it only queues a request to reboot the specified instances. The operation succeeds if the instances are valid and belong to you. Requests to reboot terminated instances are ignored.
    If an instance does not cleanly shut down within four minutes, Amazon EC2 performs a hard reboot.
    For more information about troubleshooting, see Getting Console Output and Rebooting Instances in the Amazon Elastic Compute Cloud User Guide .
    See also: AWS API Documentation
    
    
    :example: response = client.reboot_instances(
        DryRun=True|False,
        InstanceIds=[
            'string',
        ]
    )
    
    
    :type DryRun: boolean
    :param DryRun: Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

    :type InstanceIds: list
    :param InstanceIds: [REQUIRED]
            One or more instance IDs.
            (string) --
            

    """
    pass
