def vertSplitBar(fatness=1, buttB=0, buttT=0):

    leftX = WIDTH / 2 - (STROKE * fatness)
    rightX = WIDTH / 2 + (STROKE * fatness)
    vertLine(
        boxPen,
        (leftX, MEDIAN - HEIGHT / 2),
        (leftX, MEDIAN + HEIGHT / 2),
        STROKE * fatness,
        buttB, buttT
    )
    vertLine(
        boxPen,
        (rightX, MEDIAN - HEIGHT / 2),
        (rightX, MEDIAN + HEIGHT / 2),
        STROKE * fatness,
        buttB, buttT
    )
Double-stroked vertical bar, top or bottom.
dataset/ETHPy150Open adobe-type-tools/box-drawing/boxDrawing.py/vertSplitBar