@Nullable
      private static PsiMethodCallExpression extractTruncateCall(@NotNull PsiVariable targetBuilder, @NotNull PsiIfStatement ifStatement) {
        if (ifStatement.getElseBranch() != null) return null;
        PsiStatement block = ifStatement.getThenBranch();
        PsiStatement[] thenBranch = ControlFlowUtils.unwrapBlock(block);
        if (thenBranch.length != 1) return null;
        PsiExpressionStatement expressionStatement = tryCast(thenBranch[0], PsiExpressionStatement.class);
        if(expressionStatement == null) return null;
        PsiMethodCallExpression call = tryCast(expressionStatement.getExpression(), PsiMethodCallExpression.class);
        if (!SET_LENGTH.test(call)) return null;
        PsiLocalVariable localVariable = resolveLocalVariable(call.getMethodExpression().getQualifierExpression());

        if (!targetBuilder.equals(localVariable)) return null;
        return call;
      }
@Nullable
      private static PsiMethodCallExpression extractTruncateCall(@NotNull PsiVariable targetBuilder, @NotNull PsiIfStatement ifStatement)