code: def get_creation_date(
              self,
              bucket: str,
              key: str,
      ) -> datetime:
          
          # An S3 object's creation date is stored in its LastModified field which stores the
          # most recent value between the two.
          return self.get_last_modified_date(bucket, key)
docs: Retrieves the creation date for a given key in a given bucket.
          :param bucket: the bucket the object resides in.
          :param key: the key of the object for which the creation date is being retrieved.
          :return: the creation date