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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 find_module(self, modname, folder=None):
 """Returns a resource corresponding to the given module returns None if it can not be found """

        for src in self.get_source_folders():
            module = _find_module_in_folder(src, modname)
            if module is not None:
                return module
        for src in self.get_python_path_folders():
            module = _find_module_in_folder(src, modname)
            if module is not None:
                return module
        if folder is not None:
            module = _find_module_in_folder(folder, modname)
            if module is not None:
                return module
        return None