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TextMetrics
actualBoundingBoxAscent
actualBoundingBoxDescent
actualBoundingBoxLeft
actualBoundingBoxRight
alphabeticBaseline
emHeightAscent
emHeightDescent
fontBoundingBoxAscent
fontBoundingBoxDescent
hangingBaseline
ideographicBaseline
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actualBoundingBoxAscent
actualBoundingBoxDescent
actualBoundingBoxLeft
actualBoundingBoxRight
alphabeticBaseline
emHeightAscent
emHeightDescent
fontBoundingBoxAscent
fontBoundingBoxDescent
hangingBaseline
ideographicBaseline
width