@nightgrey/ansi
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    Variable requestExtendedCursorPositionConst

    requestExtendedCursorPosition: "\u001b[?6n" = "\x1b[?6n"

    requestExtendedCursorPosition (DECXCPR) is a sequence for requesting the cursor position report including the current page number.

    CSI ? 6 n

    The terminal will report the cursor position as a CSI sequence in the following format:

    CSI ? Pl ; Pc ; Pp R

    Where Pl is the line number, Pc is the column number, and Pp is the page number.

    use requestExtendedCursorPositionReport instead.