export declare const isValid: (imp: any) => imp is number;
export declare const format: (imp: number) => string;
export declare enum Evaluation {
    TheLowest = "THE_LOWEST",
    SuperLow = "SUPER_LOW",
    VeryLow = "VERY_LOW",
    Low = "LOW",
    Normal = "NORMAL",
    High = "HIGH",
    VeryHigh = "VERY_HIGH",
    SuperHigh = "SUPER_HIGH",
    TheHighest = "THE_HIGHEST"
}
export declare const EvaluationMembers: readonly Evaluation[];
export declare function toEvaluation(imp: number): Evaluation | null;