def add_upload_buffer(GatewayARN=None, DiskIds=None):
    """
    Configures one or more gateway local disks as upload buffer for a specified gateway. This operation is supported for the stored volume, cached volume and tape gateway architectures.
    In the request, you specify the gateway Amazon Resource Name (ARN) to which you want to add upload buffer, and one or more disk IDs that you want to configure as upload buffer.
    See also: AWS API Documentation
    
    Examples
    Configures one or more gateway local disks as upload buffer for a specified gateway.
    Expected Output:
    
    :example: response = client.add_upload_buffer(
        GatewayARN='string',
        DiskIds=[
            'string',
        ]
    )
    
    
    :type GatewayARN: string
    :param GatewayARN: [REQUIRED]
            The Amazon Resource Name (ARN) of the gateway. Use the ListGateways operation to return a list of gateways for your account and region.
            

    :type DiskIds: list
    :param DiskIds: [REQUIRED]
            (string) --
            

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