@Override
    public Set<String> getWarnings() {
        return warnings;
    }
To enable and disable Siddhi App playback mode on runtime along with optional parameters.

@param playBackEnabled         whether playback is enabled or not
@param idleTime
@param incrementInMilliseconds
modules/siddhi-core/src/main/java/io/siddhi/core/SiddhiAppRuntimeImpl.java