libtmux.Pane.from_pane_id

tmux's cmd_find routes a -t target by *sigil*, so a %-id handed to list-panes resolves to that pane's window and lists it. Every row comes back stamped with the session tmux considers canonical for that window -- the most recently active one -- which is the same session display-message -t %ID '#{session_id}' reports. A window linked into several sessions therefore gets one authoritative answer instead of "whichever session sorted last".