-"""
-A future that can be treated as a substutute for the result that it
-contains and will not block until it is used. At that point, if the
-underlying value is not yet available yet, it will block until the
-internal result actually becomes available.
-
+"""A :class:Future that can be treated as a substutute for the result
+that it contains and will not block until it is used. At that point,
+if the underlying value is not yet available yet, it will block until
+the internal result actually becomes available.