name="description" content="Add a semi-continuous decision to a conservation planning
problem. This is a relaxed decision where a part of a planning
unit can be prioritized, as opposed to the entire planning unit.
This decision is similar to the add_proportion_decisions()
function, except that it has an upper bound parameter. By default, the
decision can range from prioritizing none (0%) to all (100%) of a
planning unit. However, an upper bound can be specified to ensure that, at
most, only a fraction (e.g.