static _get(domElementOrSelector, getFunction, callback = null) {
        const domElement = AutoNumericHelper.domElement(domElementOrSelector);

        if (!this.isManagedByAutoNumeric(domElement)) {
            AutoNumericHelper.throwError(`Impossible to find an AutoNumeric object for the given DOM element or selector.`);
        }

        return this.getAutoNumericElement(domElement)[getFunction](callback);
    }
DRY the code between the static `get*` functions

@param {HTMLElement|string} domElementOrSelector
@param {string} getFunction The name of the non-static `get*` function as a string
@param {function|null} callback
@returns {*}
@private