Fix timer in examples

Author: mat

reactivex/operators/__init__.py

@@ -685,7 +685,7 @@ def delay_with_mapper(
 
     Examples:
         >>> # with mapper only
-        >>> res = source.delay_with_mapper(lambda x: Scheduler.timer(5.0))
+        >>> res = source.delay_with_mapper(lambda x: reactivex.timer(5.0))
         >>> # with delay and mapper
         >>> res = source.delay_with_mapper(
             reactivex.timer(2.0), lambda x: reactivex.timer(x)
@@ -3690,7 +3690,7 @@ def throttle_with_mapper(
     another value within a computed throttle duration.
 
     Example:
-        >>> op = throttle_with_mapper(lambda x: rx.Scheduler.timer(x+x))
+        >>> op = throttle_with_mapper(lambda x: reactivex.timer(x+x))
 
     Args:
         throttle_duration_mapper: Mapper function to retrieve an