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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _format(color, style=''):

 """Return a QTextCharFormat with the given attributes.
 """

    _color = QColor()
    _color.setNamedColor(color)

    _format = QTextCharFormat()
    _format.setForeground(_color)
    if 'bold' in style:
        _format.setFontWeight(QFont.Bold)
    if 'italic' in style:
        _format.setFontItalic(True)

    return _format