I am trying to use an **input** that i sent by *appcomponent* to my select component.

I need to use the value in my class. The problem that it hasn't been identified on my class but when i put it in the template i can see it.

For example in this component:

```
import {Component, Input} from 'angular2/core';
@Component({
selector: 'test',
template: "<h4>test 1 {{test_input}}</h4>   <br>" 
})
export class TestComponent {
private test_test;

@Input() test_input: string;
}

```

I need to use test\_input for example to modify it.