presto-main/src/main/java/io/prestosql/server/protocol/Query.java/Query/toClientTypeSignature
class Query:    private static ClientTypeSignature toClientTypeSignature(TypeSignature signature)
    {
        return new ClientTypeSignature(signature.getBase(), signature.getParameters().stream()
                .map(Query::toClientTypeSignatureParameter)
                .collect(toImmutableList()));
    }