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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 property_value(self, io_handler, name):
 """ Prints the value of the given property, looking into framework properties then environment variables. """

        value = self._context.get_property(name)
        if value is None:
            # Avoid printing "None"
            value = ""

        io_handler.write_line(str(value))