Can I get some help with this?

const endpoint = new awsx.apigateway.API("hello-world", {
    stageArgs: {
        accessLogSettings: {
            format: {
                "httpMethod": "$context.httpMethod"
            }.toString(),
            destinationArn: "???"
        },

I want to define the cloudwatch log formats for the APIGateway but I am not sure how to do that, the docs are quite sparse on that on the Pulumi end.