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 Some methods provide <B>uniform access</B> to the diverse objects representing scopes. The implementation must use
 the underlying machinery corresponding to that scope, so information can be passed back and forth between the
 underlying environment (e.g. Servlets) and JSP pages. The methods are: <code>setAttribute()</code>,
 <code>getAttribute()</code>, <code>findAttribute()</code>, <code>removeAttribute()</code>,
 <code>getAttributesScope()</code> and <code>getAttributeNamesInScope()</code>.
 
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