`wezterm.mux.get_pane(PANE_ID)`

Since: 20220624-141144-bd1b7c5d

Given a pane ID, verifies that the ID is a valid pane known to the mux and returns a MuxPane object that can be used to operate on the pane.

This is useful for situations where you have obtained a pane id from some other source and want to use the various MuxPane methods with it.