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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 overloads(self):
 """A list of overloaded "callables" (i.e. other callables with the same name within the same scope. @type: list of :class:`calldef_t` """

        if not self.parent:
            return []
        # finding all functions with the same name
        return self.parent.calldefs(
            name=self.name,
            function=lambda decl: decl is not self,
            allow_empty=True,
            recursive=False)