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<p><span class="changed_modified_2_0_rev_a">Declares</span> that the
composite component whose contract is declared by the
<code>&lt;cc:interface&gt;</code> in which this element is nested
exposes an implementation of <code>EditableValueHolder</code> suitable
for use as the target of <em>attached objects</em> in <em>the using
page</em>.  Any attached objects suitable for implementations of
<code>EditableValueHolder</code> may be attached to the composite
component.The example from <a
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