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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 data(self):
 """Returns the data sent with the request."""


        # the environment variable CONTENT_LENGTH may be empty or missing
        try:
            request_body_size = int(self.environ.get('CONTENT_LENGTH', 0))
        except (ValueError):
            request_body_size = 0

        data = self.environ['wsgi.input'].read(request_body_size)

        return data