code: def set_need(self, resource, amount, units, frequency='weekly'):
          
          self.minimum_needs['resources'].append({
              'Resource name': resource,
              'Default': amount,
              'Unit abbreviation': units,
              'Frequency': frequency
          })
docs: Append a single new minimum need entry to the list.
  
          :param resource: Minimum need resource name.
          :type resource: basestring
  
          :param amount: Amount per person per time interval
          :type amount: int, float
  
          :param units: The unit that the resource is measured in.
          :type: basestring
  
          :param frequency: How regularly the unit needs to be dispatched
          :type: basestring  # maybe at some point fix this to a selection.