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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 open(self, filepath):
 """ Open settings backend to return its content Args: filepath (str):
 Settings object, depends from backend Returns: string: File content. """

        with io.open(filepath, 'r', encoding='utf-8') as fp:
            content = fp.read()
        return content