src/main/java/io/reactivex/Flowable.java
@CheckReturnValue
    @BackpressureSupport(BackpressureKind.FULL)
    @SchedulerSupport(SchedulerSupport.NONE)
    public final Flowable<T> takeLast(long count, long time, TimeUnit unit) {
        return takeLast(count, time, unit, Schedulers.computation(), false, bufferSize());
    }
@CheckReturnValue
    @BackpressureSupport(BackpressureKind.FULL)
    @SchedulerSupport(SchedulerSupport.NONE)
    public final Flowable<T> takeLast(long count, long time, TimeUnit unit) {
        return takeLast(count, time, unit, Schedulers.computation(), false, bufferSize());
    }
@ CheckReturnValue @ BackpressureSupport ( BackpressureKind . FULL ) @ SchedulerSupport ( SchedulerSupport . NONE ) public final Flowable < T > takeLast ( long count , long time , TimeUnit unit ) { return takeLast ( count , time , unit , Schedulers . computation ( ) , false , bufferSize ( ) ) ; }
Returns a Flowable that emits at most a specified number of items from the source Publisher that were
emitted in a specified window of time before the Publisher completed.
<p>
<img width="640" height="310" src="https://raw.github.com/wiki/ReactiveX/RxJava/images/rx-operators/takeLast.tn.png" alt="">
<dl>
<dt><b>Backpressure:</b></dt>
<dd>The operator honors backpressure from downstream and consumes the source {@code Publisher} in an
unbounded manner (i.e., no backpressure is applied to it).</dd>
<dt><b>Scheduler:</b></dt>
<dd>{@code takeLast} does not operate on any particular scheduler but uses the current time
from the {@code computation} {@link Scheduler}.</dd>
</dl>

@param count
the maximum number of items to emit
@param time
the length of the time window
@param unit
the time unit of {@code time}
@return a Flowable that emits at most {@code count} items from the source Publisher that were emitted
in a specified window of time before the Publisher completed
@see <a href="http://reactivex.io/documentation/operators/takelast.html">ReactiveX operators documentation: TakeLast</a>
Returns a Flowable that emits at most a specified number of items from the source Publisher that were emitted in a specified window of time before the Publisher completed . <p > <img width = 640 height = 310 src = https : // raw . github . com / wiki / ReactiveX / RxJava / images / rx - operators / takeLast . tn . png alt = > <dl > <dt > <b > Backpressure : < / b > < / dt > <dd > The operator honors backpressure from downstream and consumes the source { @code Publisher } in an unbounded manner ( i . e . no backpressure is applied to it ) . < / dd > <dt > <b > Scheduler : < / b > < / dt > <dd > { @code takeLast } does not operate on any particular scheduler but uses the current time from the { @code computation } { @link Scheduler } . < / dd > < / dl >