Movie API:How Can I Return The Value?

I'm using The Movie Database API. And the problem that i can't solve is returning "keys" variable when i call the function with Movie's id.I'm new on JavaScript that's why i can't solve this. Hope someone can help me, thanks in advance.

    async function getTrailer(id)
{
     const resp = await fetch(`https://api.themoviedb.org/3/movie/${id}/videos?api_key=04c35731a5ee918f014970082a0088b1&language=en-US`);
     const respDataa = await resp.json();
     let results = respDataa.results;
     let keys = results[0].key;
     console.log(keys)
}


getTrailer(528085) // here i put the specific id of the movie.