import { Rules } from "../Rules";
import { IRuleOptions } from "../../../interfaces/RulesInterface";
import { ICustomRuleCallback } from "../../../..";
export declare class NumberRules extends Rules {
    isNumber(options?: IRuleOptions): NumberRules;
    readonly number: NumberRules;
    isRequired(options?: IRuleOptions): NumberRules;
    readonly required: NumberRules;
    custom(callback: ICustomRuleCallback): NumberRules;
}
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