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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 protect(self, password=None, read_protect=False, protect_from=0):
 """Protect a tag against future write or read access. :meth:`protect` attempts to make a tag readonly for all readers if *password* is :const:`None`, writeable only after authentication if a *password* is provided, and readable only after authentication if a *password* is provided and the *read_protect* flag is set. The *password* must be a byte or character sequence that provides sufficient key material for the tag specific protect function (this is documented separately for the individual tag types). As a special case, if *password* is set to an empty string the :meth:`protect` method uses a default manufacturer value if such is known. The *protect_from* argument sets the first memory unit to be protected. Memory units are tag type specific, for a Type 1 or Type 2 Tag a memory unit is 4 byte, for a Type 3 Tag it is 16 byte, and for a Type 4 Tag it is the complete NDEF data area. Note that the effect of protecting a tag without password can normally not be reversed. The return value of :meth:`protect` is either :const:`True` or :const:`False` depending on whether the operation was successful or not, or :const:`None` if the tag does not support custom protection (or it is not implemented). """

        if hasattr(self, "_protect"):
            args = "password={0!r}, read_protect={1!r}, protect_from={2!r}"
            args = args.format(password, read_protect, protect_from)
            log.debug("protect({0})".format(args))
            status = self._protect(password, read_protect, protect_from)
            if status is True:
                self._ndef = None
            return status
        else:
            log.error("this tag can not be protected with nfcpy")
            return None