@utilities.arguments_not_none<EOL><INDENT>def match_time_spent(self, low, high, match):<DEDENT>
raise errors.Unimplemented()<EOL>
Matches assessments where the time spent falls between the specified range inclusive.

        arg:    low (osid.calendaring.Duration): start of duration range
        arg:    high (osid.calendaring.Duration): end of duration range
        arg:    match (boolean): ``true`` for a positive match,
                ``false`` for a negative match
        raise:  InvalidArgument - ``high`` is less than ``low``
        raise:  NullArgument - ``low`` or ``high`` is ``null``
        *compliance: mandatory -- This method must be implemented.*