export declare enum CSSMathOperator {
    kAdd = "+",
    kSubtract = "-",
    kMultiply = "*",
    kDivide = "/",
    kMin = "min",
    kMax = "max",
    kClamp = "clamp",
    kInvalid = ""
}
export declare function isComparison(op: CSSMathOperator): boolean;