def get_minimum_distance(self):
<EOL>if self._kwargs['<STR_LIT>'] not in ['<STR_LIT>']:<EOL><INDENT>raise errors.IllegalState()<EOL><DEDENT>return self._kwargs['<STR_LIT>']<EOL>
Gets the minimum distance value.

        return: (osid.mapping.Distance) - the minimum value
        raise:  IllegalState - syntax is not a ``DISTANCE``
        *compliance: mandatory -- This method must be implemented.*