human
I wrote the below code

    def cast_date(value, cursor):
        return value
    cursor = connection.cursor()
    cursor.execute('SELECT    NULL::date')
    date_oid = cursor.description[0][1]
    cursor.execute('SELECT    NULL::timestamp')
    timestamp_oid = cursor.description[0][1]
    cursor.execute('SELECT    NULL::timestamp    with    time    zone')
    timestamptz_oid = cursor.description[0][1]
    oids = (date_oid, timestamp_oid, timestamptz_oid)
    new_type = psycopg2.extensions.new_type(oids, 'DATE', cast_date)
    psycopg2.extensions.register_type(new_type)

What's a good function header?
 ... Here's a good function header?
assistant
#Here's a good function header.

def register_date_typecasters(connection):