docs: public void setMaxParallelism(int maxParallelism) {
  		Preconditions.checkArgument(maxParallelism > 0
  						&& maxParallelism <= StreamGraphGenerator.UPPER_BOUND_MAX_PARALLELISM,
  				"Maximum parallelism must be between 1 and " + StreamGraphGenerator.UPPER_BOUND_MAX_PARALLELISM
  						+ ". Found: " + maxParallelism);
  		this.maxParallelism = maxParallelism;
  	}