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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 load(self, path):
 """ Load yaml-formatted config file. Parameters path : str path to config file """

        with open(path) as f:
            self.config = full_load(f)
            if self.config is None:
                sys.stderr.write("Warning: config file is empty!\n")
                self.config = {}