def clear_end_date(self):
if (self.get_end_date_metadata().is_read_only() or<EOL>self.get_end_date_metadata().is_required()):<EOL><INDENT>raise NoAccess()<EOL><DEDENT>self.my_osid_object_form._my_map['<STR_LIT>'] =DateTime(**self._end_date_metadata['<STR_LIT>'][<NUM_LIT:0>])<EOL>
Clears the end date.

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