def update_gateway_information(GatewayARN=None, GatewayName=None,
    GatewayTimezone=None):
    """
    Updates a gateway's metadata, which includes the gateway's name and time zone. To specify which gateway to update, use the Amazon Resource Name (ARN) of the gateway in your request.
    See also: AWS API Documentation
    
    Examples
    Updates a gateway's metadata, which includes the gateway's name and time zone.
    Expected Output:
    
    :example: response = client.update_gateway_information(
        GatewayARN='string',
        GatewayName='string',
        GatewayTimezone='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 GatewayName: string
    :param GatewayName: The name you configured for your gateway.

    :type GatewayTimezone: string
    :param GatewayTimezone: 

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