pg_prepared_statements missing column

Hello Devs,

My buddy and I were running through the 15.1 docs today and found the
pg_prepared_statements view doesn't include the return_type column like it
says it should.

Here is the printout from /d pg_prepared_statements
View "pg_catalog.pg_prepared_statements" Column | Type | Collation |
Nullable | Default
-----------------+--------------------------+-----------+----------+---------
name | text | | | statement | text | | | prepare_time | timestamp with time
zone | | | parameter_types | regtype[] | | | from_sql | boolean | | |
generic_plans | bigint | | | custom_plans | bigint | | |

My version:
PostgreSQL 15.1 (Debian 15.1-1.pgdg110+1) on x86_64-pc-linux-gnu, compiled
by gcc (Debian 10.2.1-6) 10.2.1 20210110, 64-bit

Link to docs:
https://www.postgresql.org/docs/15/view-pg-prepared-statements.html

I'm not sure exactly what to make of it, but I wanted to submit a ticket.

Thanks for all your hard work!
-PG