def setupTable_head(self):
        """
        Make the head table.

        **This should not be called externally.** Subclasses
        may override or supplement this method to handle the
        table creation in a different way if desired.
        """
        if "head" not in self.tables:
            return

        self.otf["head"] = head = newTable("head")
        font = self.ufo
        head.checkSumAdjustment = 0
        head.tableVersion = 1.0
        head.magicNumber = 0x5F0F3CF5

        # version numbers
        # limit minor version to 3 digits as recommended in OpenType spec:
        # https://www.microsoft.com/typography/otspec/recom.htm
        versionMajor = getAttrWithFallback(font.info, "versionMajor")
        versionMinor = getAttrWithFallback(font.info, "versionMinor")
        fullFontRevision = float("%d.%03d" % (versionMajor, versionMinor))
        head.fontRevision = round(fullFontRevision, 3)
        if head.fontRevision != fullFontRevision:
            logger.warning(
                "Minor version in %s has too many digits and won't fit into "
                "the head table's fontRevision field; rounded to %s.",
                fullFontRevision, head.fontRevision)

        # upm
        head.unitsPerEm = otRound(getAttrWithFallback(font.info, "unitsPerEm"))

        # times
        head.created = dateStringToTimeValue(getAttrWithFallback(font.info, "openTypeHeadCreated")) - mac_epoch_diff
        head.modified = dateStringToTimeValue(dateStringForNow()) - mac_epoch_diff

        # bounding box
        xMin, yMin, xMax, yMax = self.fontBoundingBox
        head.xMin = otRound(xMin)
        head.yMin = otRound(yMin)
        head.xMax = otRound(xMax)
        head.yMax = otRound(yMax)

        # style mapping
        styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
        macStyle = []
        if styleMapStyleName == "bold":
            macStyle = [0]
        elif styleMapStyleName == "bold italic":
            macStyle = [0, 1]
        elif styleMapStyleName == "italic":
            macStyle = [1]
        head.macStyle = intListToNum(macStyle, 0, 16)

        # misc
        head.flags = intListToNum(getAttrWithFallback(font.info, "openTypeHeadFlags"), 0, 16)
        head.lowestRecPPEM = otRound(getAttrWithFallback(font.info, "openTypeHeadLowestRecPPEM"))
        head.fontDirectionHint = 2
        head.indexToLocFormat = 0
        head.glyphDataFormat = 0
Make the head table.

        **This should not be called externally.** Subclasses
        may override or supplement this method to handle the
        table creation in a different way if desired.