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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 transform_dot(self, node, results):
 """Transform for calls to module members in code."""

        module_dot = results.get("bare_with_attr")
        member = results.get("member")
        new_name = None
        if isinstance(member, list):
            member = member[0]
        for change in MAPPING[module_dot.value]:
            if member.value in change[1]:
                new_name = change[0]
                break
        if new_name:
            module_dot.replace(Name(new_name,
                                    prefix=module_dot.prefix))
        else:
            self.cannot_convert(node, "This is an invalid module element")