code: @Nonnull
  	public Imports copyAndAdd(final Imports imports) {
  		Check.notNull(imports, "imports");
  		return copyAndAdd(imports.asList());
  	}
docs: Adds the passed {@code Imports} to the current set and returns them as new instance of {@code Imports}.
  
  @param imports
  {@code Imports} to add
  @return new instance of {@code Imports}