'Adds an internal tracking reference for the given quota.'

def add_quota(self, quota):

    if ((quota.limit is None) or (quota.limit == (-1))):
        self.usages[quota.name]['quota'] = float('inf')
        self.usages[quota.name]['available'] = float('inf')
    else:
        self.usages[quota.name]['quota'] = int(quota.limit)
