@Nullable
    private static Integer extractConditionPrefixLength(@NotNull PsiExpression expression, PsiVariable targetBuilder) {
      Integer explicitLengthCondition = extractExplicitLengthCheck(expression, targetBuilder);
      if (explicitLengthCondition != null) return explicitLengthCondition;
      return extractEmptyLengthCheck(expression, targetBuilder);
    }
@Nullable
    private static Integer extractConditionPrefixLength(@NotNull PsiExpression expression, PsiVariable targetBuilder)