--monitor <monitors>::
Filter results to only print workspaces/windows that are attached to specified monitors.
`<monitors>` is a space separated list of monitor IDs. +
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Possible monitors IDs: +
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. 1-based index of a monitor as if monitors were ordered horizontally from left to right
. `all` is a special monitor ID that represents all monitors
. `mouse` is a special monitor ID that represents monitor with the mouse
. `focused` is a special monitor ID that represents the focused monitor