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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 flush_main(self):
 """Flushes the implicit main function if there is no main function defined."""


        if self.has_main:
            return

        self.in_main = True

        self.write('task main()')
        self.INDENT()

        if self.debug:
            print 'Flushing main:', self.fv.main
        for node in self.fv.main:
            self.v(node)
            self.NEWLINE()

        self.DEDENT()

        self.in_main = False