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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 parent_suite(self):
 """Get the current parent suite. A parent suite exists when a context within a suite is active. That is, during execution of a tool within a suite, or after a user has entered an interactive shell in a suite context, for example via the command- line syntax 'tool +i', where 'tool' is an alias in a suite. Returns: `Suite` object, or None if there is no current parent suite. """

        if self.context and self.context.parent_suite_path:
            return Suite.load(self.context.parent_suite_path)
        return None