In my model I've a Delay block (see image below) connected with other blocks (not shown in the image). I have handles of each of the three ports of the Delay block, but I do not know which handle belongs to which port. Is there a programmatic way to get the "name" of the ports (e.g. Getting the values u, d and x0)?
I have access to the block's handle and handles of the three ports as well.
Please note that the labels u, d and x0 as shown in the picture are provided by Simulink, not me. And I do not want to put custom labels/tags to the ports.

get(port_handle)in the interactive REPL, you'll get a list of all the attributes. - Ben Voigt