bug: Failure to Dispense to Trashbin

[lego5kid]

Overview

I am using an OT-2 with a protocol I initially designed on api 2.15.
Originally, I was able to dispense supernatant using the transfer() command, with protocol.fixed_trash['A1'] as the destination.
When updating the protocol to 2.16, I get the error saying that TrashBin is not subscriptable, which is what is laid out in the API docs.
However, when I remove the supscript, ultimately removing the well, I get the following error in both the simulator and when uploading to the robot.

TypeError [line 217]: <opentrons.protocol_api._trash_bin.TrashBin object at 0x0000018CC05D32E0>

Now this could full well be an understanding issue on my part, in which case I would like the API docs to be updated, because they are now unclear to how one would dispense to trashbin on OT-2.

Steps to reproduce

Here's the transfer command I use within a for loop to transfer a supernatant to the trash. This is after I removed the well specification.

        left_pipette.transfer(
            300,
            column[0],
            protocol.fixed_trash,
            new_tip="once"
        )

[lego5kid]

I see the documentation has been updated to clarify that the trashbin cannot be used as a well anymore. Is there any way that functionality may return in later versions?