function bakeOp(browser, opName, input, args=[]) {
    browser.perform(function() {
        console.log(`Current test: ${opName}`);
    });
    utils.loadRecipe(browser, opName, input, args);
    browser.waitForElementVisible("#stale-indicator", 5000);
    utils.bake(browser);
}
@function
Clears the current recipe and bakes a new operation.

@param {Browser} browser - Nightwatch client
@param {string|Array<string>} opName - name of operation to be tested, array for multiple ops
@param {string} input - input text for test
@param {Array<string>|Array<Array<string>>} [args=[]] - arguments, nested if multiple ops