Invalid unparse for TRIM in PrestoDialect

presto> SELECT TRIM(LEADING 'a' from 'abcd');
Query 20250504_062451_29862_cqcdm failed: line 1:25: mismatched input 'from'. Expecting: ',', <expression>

SELECT TRIM(TRAILING 'a' from 'abcd')
Query 20250504_062451_29863_cqcdm failed: line 1:25: mismatched input 'from'. Expecting: ',', <expression> 

SELECT TRIM(BOTH 'a' from 'abcd')
Query 20250504_062451_29863_cqcdm failed: line 1:25: mismatched input 'from'. Expecting: ',', <expression> 

presto> SELECT TRIM('abcd', 'a');
> bcd 

presto> SELECT LTRIM('abcd', 'a');
> bcd 

presto> SELECT RTRIM('abcd', 'd');
> abc 

presto> SELECT TRIM(' abcd ');
> abcd