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							- Component({
 -     externalClasses: ['i-class'],
 -     relations: {
 -         '../radio/index': {
 -             type: 'child',
 -             linked() {
 -                 this.changeCurrent();
 -             },
 -             linkChanged() {
 -                 this.changeCurrent();
 -             },
 -             unlinked() {
 -                 this.changeCurrent();
 -             }
 -         }
 -     },
 -     properties: {
 -         current: {
 -             type: String,
 -             value: '',
 -             observer: 'changeCurrent'
 -         },
 -     },
 -     methods: {
 -         changeCurrent(val = this.data.current) {
 -             let items = this.getRelationNodes('../radio/index');
 -             const len = items.length;
 -             if (len > 0) {
 -                 items.forEach(item => {
 -                     item.changeCurrent(val === item.data.value);
 -                 });
 -             }
 -         },
 -         emitEvent(current) {
 -             this.triggerEvent('change', current);
 -         }
 -     }
 - });
 
 
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