def METHOD_NAME(connection_gateway_name: Optional[pulumi.Input[str]] = None,
                                  resource_group_name: Optional[pulumi.Input[str]] = None,
                                  subscription_id: Optional[pulumi.Input[Optional[str]]] = None,
                                  opts: Optional[pulumi.InvokeOptions] = None) -> pulumi.Output[GetConnectionGatewayResult]:
    """
    Gets a specific gateway under a subscription and in a specific resource group
    Azure REST API version: 2016-06-01.
    :param str connection_gateway_name: The connection gateway name
    :param str resource_group_name: The resource group
    :param str subscription_id: Subscription Id
    """
    ...