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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 get_builder(self, env):
 """ Returns the appropriate real Builder for this method name after having the associated ToolInitializer object apply the appropriate Tool module. """

        builder = getattr(env, self.__name__)

        self.initializer.apply_tools(env)

        builder = getattr(env, self.__name__)
        if builder is self:
            # There was no Builder added, which means no valid Tool
            # for this name was found (or possibly there's a mismatch
            # between the name we were called by and the Builder name
            # added by the Tool module).
            return None

        self.initializer.remove_methods(env)

        return builder