Which keymap fired in minibuffer?

[emacs-list-18]

Hi,

 is there a (canonical) way to tell in which keymap the binding was
 found that was just executed in a minibuffer the current state of
 emacs? emacs version >= 26

 What i did till now is this:
 (defun find_binding()
 (interactive)
 (message "local %s" (current-local-map))
 )

 (global-set-key (kbd "<f2>") 'find_binding)

 ...but this only tells me the contents of the keymap, but not its name.

Any ideas?

Christoph