public int find(V target, InclusionMode mode) {
    	return find(target, mode, MatchRequirement.EXACT_ONLY);
    }
public int find(V target, InclusionMode mode) {
    	return find(target, mode, MatchRequirement.EXACT_ONLY);
    }
public int find(v target, inclusionmode mode) { return find(target, mode, matchrequirement.exact_only); }