Extending the Bus Node, getting an error

[aegis72]

I'm trying to modify the Bus node to pass through additional stuff (I'd like to pass 2 images [one for original, one for processed], seed number, latent size, etc towards the goal of having a bus on either end of my workflow modules (right now, I am inelegantly using reroutes for this).

However, when I try to do this just with one image as below (procimage is what I'm using here, but I've tried several names) I get this error:

ERROR:root:!!! Exception during processing !!!
ERROR:root:Traceback (most recent call last):
  File "D:\AegisFlow\ComfyUI\execution.py", line 153, in recursive_execute
    output_data, output_ui = get_output_data(obj, input_data_all)
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\AegisFlow\ComfyUI\execution.py", line 83, in get_output_data
    return_values = map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\AegisFlow\ComfyUI\execution.py", line 76, in map_node_over_list
    results.append(getattr(obj, func)(**slice_dict(input_data_all, i)))
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\AegisFlow\ComfyUI\custom_nodes\was-node-suite-comfyui\WAS_Node_Suite.py", line 12218, in bus_fn
    out_procimage       = procimage or bus_procimage
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: Boolean value of Tensor with more than one value is ambiguous

**Here's my attempt to modify the WAS_node_suite.py: I'm trying first to get the syntax right by copying other inputs pattern. I've added one more "none" to the (self, bus=(none,none....) area to accomodate the new line. Also, if I disconnect the preview node at the end, it will run without an error:

**

# Bus.  Converts the 5 main connectors into one, and back again.  You can provide a bus as input
#       or the 5 separate inputs, or a combination.  If you provide a bus input and a separate
#       input (e.g. a model), the model will take precedence.
#
#       The term 'bus' comes from computer hardware, see https://en.wikipedia.org/wiki/Bus_(computing)
class WAS_Bus:
    def __init__(self):
        pass

    @classmethod
    def INPUT_TYPES(cls):
        return {
            "required":{},
            "optional": {
                "bus" : ("BUS",),
                "model": ("MODEL",),
                "clip": ("CLIP",),
                "vae": ("VAE",),
                "procimage": ("IMAGE",),                
                "positive": ("CONDITIONING",),
                "negative": ("CONDITIONING",),
            }
        }
    RETURN_TYPES = ("BUS", "MODEL", "CLIP", "VAE", "IMAGE", "CONDITIONING", "CONDITIONING",)
    RETURN_NAMES = ("bus", "model", "clip", "vae", "procimage", "positive", "negative")
    FUNCTION = "bus_fn"
    CATEGORY = "WAS Suite/Utilities"

    def bus_fn(self, bus=(None,None,None,None,None,None), model=None, clip=None, vae=None, procimage=None, positive=None, negative=None):

        # Unpack the 5 constituents of the bus from the bus tuple.
        (bus_model, bus_clip, bus_vae, bus_procimage, bus_positive, bus_negative) = bus

        # If you pass in specific inputs, they override what comes from the bus.
        out_model       = model     or bus_model
        out_clip        = clip      or bus_clip
        out_vae         = vae       or bus_vae
        out_procimage   = procimage or bus_procimage
        out_positive    = positive  or bus_positive
        out_negative    = negative  or bus_negative

        # Squash all 5 inputs into the output bus tuple.
        out_bus = (out_model, out_clip, out_vae, out_procimage, out_positive, out_negative)

        if not out_model:
            raise ValueError('Either model or bus containing a model should be supplied')
        if not out_clip:
            raise ValueError('Either clip or bus containing a clip should be supplied')
        if not out_vae:
            raise ValueError('Either vae or bus containing a vae should be supplied')
        # We don't insist that a bus contains conditioning.

        return (out_bus, out_model, out_clip, out_vae, out_procimage, out_positive, out_negative)

I realize that this is probably some dumb, simple mistake, but I've been troubleshooting it for an hour with different arrangements and variable names, to no avail.