declare module 'meteor/reactive-var' {
    var ReactiveVar: ReactiveVarStatic;
    interface ReactiveVarStatic {
        /**
         * Constructor for a ReactiveVar, which represents a single reactive variable.
         * @param initialValue The initial value to set. `equalsFunc` is ignored when setting the initial value.
         * @param equalsFunc A function of two arguments, called on the old value and the new value whenever the ReactiveVar is set. If it returns true, no set is performed. If omitted, the default
         * `equalsFunc` returns true if its arguments are `===` and are of type number, boolean, string, undefined, or null.
         */
        new <T>(initialValue: T, equalsFunc?: (oldValue: T, newValue: T) => boolean): ReactiveVar<T>;
    }
    interface ReactiveVar<T> {
        /**
         * Returns the current value of the ReactiveVar, establishing a reactive dependency.
         */
        get(): T;
        /**
         * Sets the current value of the ReactiveVar, invalidating the Computations that called `get` if `newValue` is different from the old value.
         */
        set(newValue: T): void;
    }
}