getCpuSamples abstract method
getCpuSamples RPC is used to retrieve samples collected by the CPU
profiler. Only samples collected in the time range
[timeOriginMicros, timeOriginMicros + timeExtentMicros] will be reported.
If the profiler is disabled, an RPCError response will be returned.
isolateId refers to an isolate which has exited, then the
Sentinel is returned.
This method will throw a SentinelException in the case a Sentinel is returned.
Future<CpuSamples> getCpuSamples( String isolateId, int timeOriginMicros, int timeExtentMicros);