Use Destructuring Assignment to Assign Variables from Objects asigning problem

**Tell us what’s happening"
I don’t understand that assigning statement ?
How to asign please Help

Your code so far

  today: 77.5,
  tomorrow: 79

function getTempOfTmrw(avgTemperatures) {
  "use strict";
  // change code below this line
  const { tomorrow: tempOfTomorrow}= AVG_TEMPERATURES;   // change this line
  // change code above this line
  return tempOfTomorrow;

console.log(getTempOfTmrw(AVG_TEMPERATURES)); // should be 79

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Link to the challenge:

You’re using the test object, you need to use the parameter given to the function. AVG_TEMPERATURES is just there to check your code works

Edit: with your code, if I do

getTempOfTmrw({ today: 62, tomorrow: 65})

I get a temperature of 79 for tomorrow, which is wrong, the return value should be 65