function get() {
	/* eslint-disable no-invalid-this */
	var self = this;
	if ( isString( this._label ) ) {
		return label;
	}
	return this._label;

	/**
	* Returns the label.
	*
	* @private
	* @returns {string} label
	*/
	function label() {
		return self._label; // eslint-disable-line no-underscore-dangle
	}
}
Returns a function to get a rectangle's label.

@private
@returns {Function} label accessor