code: public final Condition betweenAny(final V lo, final V hi) {
          return lo == null ? (hi == null ? null : le(hi)) : (hi == null ? ge(lo) : (lo.equals(hi) ? eq(lo) : between(lo,hi)));
      }
docs: Creates a condition which filters on any non-null argument; if {@code lo}
  is null a {@code LE} condition is applied on {@code hi}, if {@code hi}
  is null a {@code GE} condition is applied on {@code lo}.
  @param lo The start of the range (inclusive).
  @param hi The end of the range (inclusive).
  @return The condition or null if both arguments are null.
  @see com.amazonaws.services.dynamodbv2.model.ComparisonOperator#BETWEEN
  @see com.amazonaws.services.dynamodbv2.model.ComparisonOperator#EQ
  @see com.amazonaws.services.dynamodbv2.model.ComparisonOperator#GE
  @see com.amazonaws.services.dynamodbv2.model.ComparisonOperator#LE
  @see com.amazonaws.services.dynamodbv2.model.Condition