How to use pg_trgm functions in JOOQ

Is it possible to use pg_trgm functions as similarity in JOOQ?

Whenever some vendor-specific feature is missing from jOOQ, use the plain SQL API:

• https://www.jooq.org/doc/latest/manual/sql-building/plain-sql
• https://www.jooq.org/doc/3.10/manual/sql-building/plain-sql-templating/

Here's how to create a similarity function:

public static Field<Double> similarity(Field<String> a, Field<String> b) {
    return DSL.field("similarity({0}, {1})", Double.class, a, b);
}