text: public static TermRangeQuery NewStringRange(string field, string lowerTerm, string upperTerm, bool includeLower, bool includeUpper){BytesRef lower = lowerTerm == null ? null : new BytesRef(lowerTerm);BytesRef upper = upperTerm == null ? null : new BytesRef(upperTerm);return new TermRangeQuery(field, lower, upper, includeLower, includeUpper);}