Trino: CTE User-Defined Function Parse Error #5178

We are using a CTE UDF in a complex Trino query. Parsing that CTE UDF with SQLGlot (26.25.3) results in a ParseError exception. A normal UDF and a normal CTE query parses as expected.

WITH FUNCTION f(num int)
    RETURNS int
    RETURN num
SELECT f(1);

sqlglot.parse_one(sql, dialect="trino")

sqlglot.errors.ParseError: Expecting (. Line 1, Col: 15.
  WITH FUNCTION f(num int)
    RETURNS int
    RETURN num
SELECT f(1);