Custom types with dynamic columns in select statement

I am currently doing something like this (https://github.com/porsager/postgres?tab=readme-ov-file#dynamic-column-selection) and is seeing the same issue mentioned in #161. I added https://github.com/porsager/postgres?tab=readme-ov-file#custom-types but can't see how I can make it work with my select statement as the columns are in an array.

Does anyone have a sample piece of code that they have working to get the timestamp as a string using dynamic column in a select statement? Here is a simple example of what I'm trying to do:

var cols = ['id', 'name', 'last_created'];
var result = sql`select ${sql(cols)} from members`;

/* expecting: 
[ 
	{ 
		id: 1, 
		name: "john", 
		last_created: "2023-09-11T00:00:00.000Z"
	}
] 
*/

Thank you in advance.

Start with the dynamic column selection and custom types examples linked in the issue, then compare them with the provided query using the cols array. Determine whether the documented combination supports the expected timestamp string output; done means a confirmed working example or a clearly documented limitation.