code: def sync_one(self, aws_syncr, amazon, bucket):
          
          if bucket.permission.statements:
              permission_document = bucket.permission.document
          else:
              permission_document = ""
  
          bucket_info = amazon.s3.bucket_info(bucket.name)
          if not bucket_info.creation_date:
              amazon.s3.create_bucket(bucket.name, permission_document, bucket)
          else:
              amazon.s3.modify_bucket(bucket_info, bucket.name, permission_document, bucket)
docs: Make sure this bucket exists and has only attributes we want it to have