presto-parser/src/main/java/io/prestosql/sql/tree/QualifiedName.java/QualifiedName/of
class QualifiedName:    public static QualifiedName of(Iterable<Identifier> originalParts)
    {
        requireNonNull(originalParts, "originalParts is null");
        checkArgument(!isEmpty(originalParts), "originalParts is empty");

        return new QualifiedName(ImmutableList.copyOf(originalParts));
    }