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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 read(self, path, size=MAX_PAYLOAD, offset=0, timeout=0):
 """read data at path"""


        if size > MAX_PAYLOAD:
            raise ValueError("size cannot exceed %d" % MAX_PAYLOAD)

        ret, data = self.sendmess(MSG_READ, str2bytez(path),
                                  size=size, offset=offset, timeout=timeout)
        if ret < 0:
            raise OwnetError(-ret, self.errmess[-ret], path)
        return data