title: what is the best way to read US region GCS bucket to write the data into Europe region bucket
body: <p>The need is to read GCS bucket(bucket 1) mapped to US region and then write into Europe region GCS bucket(bucket 2).
  I would like to find the best solution to achieve the requirement.
  I thought to implement bucket-1 as multiregional but I could see below options, not sure how it works If I choose anyone.</p>
  <p><a href="https://i.stack.imgur.com/HG4p7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HG4p7.png" alt="enter image description here" /></a></p>
  <p>can anyone please suggest the solution.
  Note: The requirement is bucket-1 should always be with US region.</p>