textarea_range={anchor: {:3, 0, down}, focus: {:3, 19, down}}
textarea.AXSelectedTextMarkerRange={anchor: {:3, 0, down}, focus: {:3, 19, down}}
AXSelectedTextChanged on AXTextArea AXValue='The quick brown fox' AXTextSelectionDirection=AXTextSelectionDirectionUnknown AXTextSelectionGranularity=AXTextSelectionGranularityUnknown AXTextStateChangeType=AXTextStateChangeTypeSelectionMove
textarea.AXSelectedTextMarkerRange={anchor: {:3, 0, down}, focus: {:3, 19, down}}