Examples or documentation for "WHERE field IN $1" - should be "WHERE field IN ($1)" about pgx HOT 1 OPEN

postgres@[local]:5015 pgx_test=# create temporary table t (id int primary key);
CREATE TABLE
Time: 3.058 ms
postgres@[local]:5015 pgx_test=# prepare s as select * from t where id in $1;
ERROR:  42601: syntax error at or near "$1"
LINE 1: prepare s as select * from t where id in $1;
                                                 ^
LOCATION:  scanner_yyerror, scan.l:1192
Time: 0.948 ms

postgres@[local]:5015 pgx_test=# prepare s as select * from t where id = any($1);
PREPARE
Time: 1.350 ms
postgres@[local]:5015 pgx_test=# execute s('{1,2,3}');
 id
────
(0 rows)

Time: 7.613 ms