function lambda(input, callback) {

    // var membership = input.headers.membership;
    // var token = input.headers.token;
    // var purchase = input.headers.purchase;
    let membership = "Gold",
    token = 50
    purchase = "Yes";
    var goldOver100 = "For having " + token + " tokens with a " + membership + " membership card and purchased within the month you are eligible!";
    var silverOver100 = "For having " + token + " tokens with a " + membership + " membership card and purchased within the month you are eligible spend more tokens to get a gold card!";
    var bronzeOver100 = "For having " + token + " tokens with a " + membership + " membership card and purchased within the month you are eligible! Spend more tokens for a silver card!";

    var goldOver50 = "For having " + token + " tokens with a " + membership + " membership card and purchased within the month you are eligible!";
    var silverOver50 = "For having " + token + " tokens with a " + membership + " membership card, You are just eligible, please buy more items to increase your token count.";
    var bronzeOver50 = "For having " + token + " tokens with a " + membership + " membership card, unfortunately you are not eligible";

    var goldUnder50 = "For having " + token + " tokens with a " + membership + " membership card and purchased within the month you are eligible!";
    var silverUnder50 = "For having " + token + " tokens with a " + membership + " membership card and purchased within the month, unfortunately you are not eligible";
    var bronzeUnder50 = "For having " + token + " tokens with a " + membership + " membership card, unfortunately you are not eligible";

    var noPurchase = "For having " + token + " tokens with a " + membership + " But not purchasing in the month, Im sorry you are not eligible";


    console.log("going into if");
    if(membership === "Gold" && token < 51 && purchase === "Yes" ){
        console.log(
            "membership: "+ membership,
            "\ntoken: " + token,
            "\npurchase: " + purchase
        );
        // callback(null, goldOver100);
        }else if(membership == "Silver" && token < 51 && purchase == "Yes"){
        // callback(null, silverOver100);
        }else if(membership == "Bronze" && token < 51 && purchase == "Yes"){
            // callback(null, bronzeOver100);
        }else if(membership == "Gold" && token > 50 && purchase == "Yes"){
            // callback(null, goldOver50);
        }else if(membership == "Silver" && token > 50 && purchase == "Yes"){
            // callback(null, silverOver50);
        }else if(membership == "Bronze" && token > 50 && purchase == "Yes"){
            // callback(null, bronzeOver50);
        }else if(membership == "Gold" && token < 50 && purchase == "Yes"){
            // callback(null, goldUnder50);
        }else if(membership == "Silver" && token < 50 && purchase == "Yes"){
            // callback(null, silverUnder50);
        }else if(membership == "Bronze" && token < 50 && purchase == "Yes"){
            // callback(null, bronzeUnder50);
        }else if(purchase == "No");{
            // callback(null, noPurchase);
        }
    }
lambda();