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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 qualified_name(self):
 """Retrieves the fully qualified command name. This is the full parent name with the command name as well. For example, in ``?one two three`` the qualified name would be ``one two three``. """


        parent = self.full_parent_name
        if parent:
            return parent + ' ' + self.name
        else:
            return self.name