Is it possible to find out the name of the current patch in pd?

For example, if I'm patching in main.pd, then I would like to find out this name by sending message.

[bang(
|
[get patch name]
|
|
main.pd

iemguts/canvasname

Thank you bro!

In Pd-l2ork there is:

[filename(
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[canvasinfo]