ZohoCRMで他タブの項目を表示させる関数を作る

ZohoCRMで他タブの項目を表示させる関数を作る

下記関数を作ったのですが、おそらく９行目と16行目で「get」の使い方・文法が間違っていてエラーとなります。
初歩的なところで恐縮ですが、解決策や参考となるURLを教えていただけないでしょうか。
※getで読み取った内容を格納する引数に、テキストで値を代入したときは正常に関数が動きました。

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