Is there a way to add multiple existence assertions

Here's an ex: how you can add multiple existence assertions in JavaScript or a tool-specific scripting..

// Sample response JSON
var response = {
    "_master_meta": {},
    "_slave_meta": {},
    "master": {},
    "slave": {}
};

// Define an array of nodes to check for existence
var nodesToCheck = ["_master_meta", "_slave_meta", "master", "slave"];

// Create a function to check the existence of nodes
function checkNodeExistence(nodeName) {
    if (response.hasOwnProperty(nodeName)) {
        // Node exists
        return true;
    } else {
        // Node does not exist
        return false;
    }
}

// Loop through the nodes and add assertions
for (var i = 0; i < nodesToCheck.length; i++) {
    var nodeName = nodesToCheck[i];
    var isNodeExist = checkNodeExistence(nodeName);
    
    // Add assertions based on the result
    if (isNodeExist) {
        // Add a pass assertion for node existence
        // You can add this result to your test report
        console.log(nodeName + " exists: PASS");
    } else {
        // Add a fail assertion for node non-existence
        // You can handle this failure in your testing process
        console.error(nodeName + " does not exist: FAIL");
    }
}

I hope it helps.