code: private static <A> ProgramChromosome<A> create(
  		final Tree<? extends Op<A>, ?> program,
  		final Predicate<? super ProgramChromosome<A>> validator,
  		final ISeq<? extends Op<A>> operations,
  		final ISeq<? extends Op<A>> terminals
  	) {
  		final ISeq<ProgramGene<A>> genes = FlatTreeNode.of(program).stream()
  			.map(n -> new ProgramGene<>(
  				n.getValue(), n.childOffset(), operations, terminals))
  			.collect(ISeq.toISeq());
  
  		return new ProgramChromosome<>(genes, validator, operations, terminals);
  	}
docs: Create the chromosomes without checks.