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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 get_question_text(constant):
 """Find a constant by name and return its value. :param constant: The name of the constant to look for. :type constant: string :returns: The value of the constant or red error message. :rtype: string """

    if constant in dir(safe.gui.tools.wizard.wizard_strings):
        return getattr(safe.gui.tools.wizard.wizard_strings, constant)
    else:
        return '<b>MISSING CONSTANT: %s</b>' % constant