How to list out the databases for which the given role has all permission in rds postgresql?

Team,

Could you guide me how to check the list of databases for which the given user has all permission granted.

for e.g. I grant all permission on database “testdb” to role “test_admin”. Further I would like to pass the role name “test_admin” in sql query to list out the databases for which
this role has all permissions.

GRANT ALL on DATABASE testdb TO "test_admin";

Could you help me

regards,
sk