Which is the erroneous line of code in the below code snippet?

1 export class ResultTemplate extends PolymerElement {

2 static get template() {

3 return html 'hi';

4 }

5 static get properties() {

6 return {

7 prop1: {

8 type: String,

9 value: 'mypolymer-app'

10 } };

11 } }

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