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  * Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package freemarker.template;
"number" template language data type; an object that stores a number. There's only one numerical type as far as the template language is concerned, but it can store its value using whatever Java number type. Making operations between numbers (and so the coercion rules) is up to the freemarker.core.ArithmeticEngine.
public interface TemplateNumberModel extends TemplateModel {

Returns the numeric value. The return value must not be null.

the java.lang.Number instance associated with this number model.
    public Number getAsNumber() throws TemplateModelException;
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