def clear_level(self):
if (self.get_level_metadata().is_read_only() or<EOL>self.get_level_metadata().is_required()):<EOL><INDENT>raise errors.NoAccess()<EOL><DEDENT>self._my_map['<STR_LIT>'] = self._level_default<EOL>self._my_map['<STR_LIT>'] = self._level_default<EOL>
Clears the level.

        raise:  NoAccess - ``Metadata.isRequired()`` or
                ``Metadata.isReadOnly()`` is ``true``
        *compliance: mandatory -- This method must be implemented.*