## In 0.5

Implementing `<core-meta>`:

```html
<link rel="import" href="../core-meta/core-meta.html">
<polymer-element name="core-foo" extends="core-meta">
  <script>
    Polymer('core-foo', {
      ready: function () {
        this.super();
        // etc..
      }
    });
  </script>
</polymer-element>
```

Accessing `<core-meta>`:

```html
<link rel="import" href="../core-foo/core-foo.html">
<polymer-element name="core-bar">
  <script>
  (function () {
    var meta;

    Polymer('core-bar', {
      ready: function () {
        if (!meta) {
          meta = document.createElement('core-meta');
        }
      },

      accessFoo: function () {
        var fooInstance = meta.byId('fooId');
        // etc..
      }
    });
  })();
  </script>
</polymer-element>
```

## In 0.8

Implementing `<core-meta>`:

```html
<link rel="import" href="../core-meta/core-meta.html">
<template>
  <core-meta type="fooType" id="fooId" value="[[]]"></core-meta>
</template>
<script>
  Polymer({
    is: 'core-foo'

    // etc..
  });
</script>
```

Accessing `<core-meta>`:

```html
<link rel="import" href="../core-meta/core-meta.html">
<template>
  <core-meta type="fooType" id="fooId"></core-meta>
</template>
<script>
  Polymer({
    is: 'core-bar',

    accessFoo: function () {
      var fooInstance = this.$.fooId.value;
      // etc..
    }
  });
</script>
```