aws sdk SyntaxError: await is only valid in async function code example

Example 1: await is only valid in async function

async function start() {
   ....

   const result = await helper.myfunction('test', 'test');
}

Example 2: SyntaxError: await is only valid in async function

// My function
const myfunction = async function(x, y) {
  return [
    x,
    y,
  ];
}

// Start function
const start = async function(a, b) {
  const result = await myfunction('test', 'test');
  
  console.log(result);
}

// Call start
start();