'Called by get_*_since functions.'

def __since(self, mtime, collector, collapse=False):

    results1 = collector()
    results2 = []
    for x in results1:
        if ((x.mtime == 0) or (x.mtime >= mtime)):
            if (not collapse):
                results2.append(x)
            else:
                results2.append(x.to_dict())
    return results2
